From beb00000bc11b8377ad9035cae559eda56508650 Mon Sep 17 00:00:00 2001
From: Nguyen Van Bach <vanbach1213@gmail.com>
Date: Tue, 18 Jun 2024 20:20:55 +0700
Subject: [PATCH 01/13] chore: add development guide

---
 DEVELOPMENT.md | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 DEVELOPMENT.md

diff --git a/DEVELOPMENT.md b/DEVELOPMENT.md
new file mode 100644
index 0000000..500ca20
--- /dev/null
+++ b/DEVELOPMENT.md
@@ -0,0 +1,12 @@
+## Development
+
+```bash
+# 1. Build docker image for developing (first time only)
+$ docker-compose build
+
+# 2. Composer installing (first time only)
+$ docker-compose run --rm php composer install
+
+# 3. Execute phpunit
+$ docker-compose run --rm php vendor/bin/phpunit
+```

From b70ebd1a0c1cf8ddec3f2d4a59e1b2378484a9e2 Mon Sep 17 00:00:00 2001
From: Nguyen Van Bach <vanbach1213@gmail.com>
Date: Tue, 18 Jun 2024 20:21:21 +0700
Subject: [PATCH 02/13] chore: add .editorconfig

---
 .editorconfig | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 .editorconfig

diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000..6842602
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,21 @@
+; This file is for unifying the coding style for different editors and IDEs.
+; More information at http://editorconfig.org
+
+root = true
+
+[*]
+indent_style = space
+indent_size = 4
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.bat]
+end_of_line = crlf
+
+[*.yml]
+indent_style = space
+indent_size = 2
+
+[*.md]
+trim_trailing_whitespace = false

From 21b32def3577f36f96f6a511c3e5b728557018d8 Mon Sep 17 00:00:00 2001
From: Nguyen Van Bach <vanbach1213@gmail.com>
Date: Tue, 18 Jun 2024 20:21:42 +0700
Subject: [PATCH 03/13] chore: add docker files

---
 .docker/php/000-default.conf | 15 +++++++++++++++
 .docker/php/Dockerfile       | 23 +++++++++++++++++++++++
 .docker/php/php.ini          |  0
 docker-compose.yml           | 13 +++++++++++++
 4 files changed, 51 insertions(+)
 create mode 100644 .docker/php/000-default.conf
 create mode 100644 .docker/php/Dockerfile
 create mode 100644 .docker/php/php.ini
 create mode 100644 docker-compose.yml

diff --git a/.docker/php/000-default.conf b/.docker/php/000-default.conf
new file mode 100644
index 0000000..8a1a891
--- /dev/null
+++ b/.docker/php/000-default.conf
@@ -0,0 +1,15 @@
+<VirtualHost *:80>
+
+    ServerAdmin webmaster@localhost
+    DocumentRoot /var/www/html/webroot
+
+    ErrorLog ${APACHE_LOG_DIR}/error.log
+    CustomLog ${APACHE_LOG_DIR}/access.log combined
+
+    <Directory /var/www/html/webroot>
+        Options Indexes FollowSymLinks
+        AllowOverride All
+        Require all granted
+    </Directory>
+
+</VirtualHost>
diff --git a/.docker/php/Dockerfile b/.docker/php/Dockerfile
new file mode 100644
index 0000000..343026d
--- /dev/null
+++ b/.docker/php/Dockerfile
@@ -0,0 +1,23 @@
+FROM php:7.2-apache
+
+LABEL author="guenbakku"
+
+# Install CakePHP required extensions
+RUN apt-get update && apt-get install -y \
+        libfreetype6-dev \
+        libjpeg62-turbo-dev \
+        libpng-dev \
+        libicu-dev \
+    && docker-php-ext-install -j$(nproc) intl \
+    && docker-php-ext-install -j$(nproc) pdo_mysql \
+    && pecl install xdebug \
+    && docker-php-ext-enable xdebug
+
+# Install zip & git (Required for composer install)
+RUN apt-get install -y git zip
+
+# Install Composer
+RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer
+
+# Enable apache rewrite module
+RUN ln -s /etc/apache2/mods-available/rewrite.load /etc/apache2/mods-enabled/rewrite.load
diff --git a/.docker/php/php.ini b/.docker/php/php.ini
new file mode 100644
index 0000000..e69de29
diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 0000000..4a80a92
--- /dev/null
+++ b/docker-compose.yml
@@ -0,0 +1,13 @@
+version: '3'
+
+services:
+  php:
+    build: ./.docker/php
+    image: php:7.2-apache-cakephp3
+    container_name: cakepdf
+    volumes:
+      - ./.docker/php/php.ini:/usr/local/etc/php/php.ini
+      - ./.docker/php/000-default.conf:/etc/apache2/sites-enabled/000-default.conf
+      - ./:/var/www/html
+    ports:
+      - 8080:80

From d6f496788fb2524134f7cfda0057461429a565ff Mon Sep 17 00:00:00 2001
From: Nguyen Van Bach <vanbach1213@gmail.com>
Date: Tue, 18 Jun 2024 20:31:27 +0700
Subject: [PATCH 04/13] chore: rename vendor dir to default name `vendor`

---
 .gitignore    | 5 +++--
 composer.json | 5 +----
 2 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/.gitignore b/.gitignore
index 64e94ec..89c98f0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
-/vendors/*
-/tests/Coverage/*
+/vendors
+/vendor
+/tests/Coverage
diff --git a/composer.json b/composer.json
index 80ecb2c..08dc2d6 100644
--- a/composer.json
+++ b/composer.json
@@ -22,8 +22,5 @@
         "psr-4": {
             "Guenbakku\\Cakepdf\\": "src"
         }
-    },
-    "config": {
-		"vendor-dir": "vendors/"
-	}
+    }
 }

From 71a4d6925e65dd02052fd97761bdb0e03ab3646c Mon Sep 17 00:00:00 2001
From: Nguyen Van Bach <vanbach1213@gmail.com>
Date: Tue, 18 Jun 2024 21:07:22 +0700
Subject: [PATCH 05/13] chore: bump h4cc/wkhtmltopdf to 0.12.4

---
 composer.json |  4 ++--
 composer.lock | 40 +++++++++++++++++++++++++++-------------
 2 files changed, 29 insertions(+), 15 deletions(-)

diff --git a/composer.json b/composer.json
index 08dc2d6..9646ab5 100644
--- a/composer.json
+++ b/composer.json
@@ -12,8 +12,8 @@
     "require": {
         "php": ">=5.6",
         "knplabs/knp-snappy": "^0.5.0",
-        "h4cc/wkhtmltopdf-i386": "^0.12.3",
-        "h4cc/wkhtmltopdf-amd64": "^0.12.3"
+        "h4cc/wkhtmltopdf-i386": "^0.12.4",
+        "h4cc/wkhtmltopdf-amd64": "^0.12.4"
     },
     "require-dev": {
         "phpunit/phpunit": "^5.7|^6.0"
diff --git a/composer.lock b/composer.lock
index e633896..d90adef 100644
--- a/composer.lock
+++ b/composer.lock
@@ -1,29 +1,34 @@
 {
     "_readme": [
         "This file locks the dependencies of your project to a known state",
-        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
+        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "16fb00f7b2f2b4d29963c3249a220d1e",
+    "content-hash": "217a95ef26d669bf05aa57a178fb935f",
     "packages": [
         {
             "name": "h4cc/wkhtmltopdf-amd64",
-            "version": "0.12.3",
+            "version": "0.12.4",
             "source": {
                 "type": "git",
                 "url": "https://github.com/h4cc/wkhtmltopdf-amd64.git",
-                "reference": "b80ce6720349e98cebac7e8a19426455805fa7e1"
+                "reference": "4e2ab2d032a5d7fbe2a741de8b10b8989523c95b"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/h4cc/wkhtmltopdf-amd64/zipball/b80ce6720349e98cebac7e8a19426455805fa7e1",
-                "reference": "b80ce6720349e98cebac7e8a19426455805fa7e1",
+                "url": "https://api.github.com/repos/h4cc/wkhtmltopdf-amd64/zipball/4e2ab2d032a5d7fbe2a741de8b10b8989523c95b",
+                "reference": "4e2ab2d032a5d7fbe2a741de8b10b8989523c95b",
                 "shasum": ""
             },
             "bin": [
                 "bin/wkhtmltopdf-amd64"
             ],
             "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "h4cc\\WKHTMLToPDF\\": ""
+                }
+            },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
                 "LGPL Version 3"
@@ -44,20 +49,24 @@
                 "thumbnail",
                 "wkhtmltopdf"
             ],
-            "time": "2016-02-02T19:38:55+00:00"
+            "support": {
+                "issues": "https://github.com/h4cc/wkhtmltopdf-amd64/issues",
+                "source": "https://github.com/h4cc/wkhtmltopdf-amd64/tree/master"
+            },
+            "time": "2018-01-15T06:57:33+00:00"
         },
         {
             "name": "h4cc/wkhtmltopdf-i386",
-            "version": "0.12.3",
+            "version": "0.12.4",
             "source": {
                 "type": "git",
                 "url": "https://github.com/h4cc/wkhtmltopdf-i386.git",
-                "reference": "79f2f8ed78d35f5541beceb2ec6fcd01a76e05ba"
+                "reference": "da14486ec8eba1873b026b56126ed02d2f2ae5e3"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/h4cc/wkhtmltopdf-i386/zipball/79f2f8ed78d35f5541beceb2ec6fcd01a76e05ba",
-                "reference": "79f2f8ed78d35f5541beceb2ec6fcd01a76e05ba",
+                "url": "https://api.github.com/repos/h4cc/wkhtmltopdf-i386/zipball/da14486ec8eba1873b026b56126ed02d2f2ae5e3",
+                "reference": "da14486ec8eba1873b026b56126ed02d2f2ae5e3",
                 "shasum": ""
             },
             "bin": [
@@ -84,7 +93,11 @@
                 "thumbnail",
                 "wkhtmltopdf"
             ],
-            "time": "2016-02-02T19:38:57+00:00"
+            "support": {
+                "issues": "https://github.com/h4cc/wkhtmltopdf-i386/issues",
+                "source": "https://github.com/h4cc/wkhtmltopdf-i386/tree/master"
+            },
+            "time": "2018-01-15T07:18:15+00:00"
         },
         {
             "name": "knplabs/knp-snappy",
@@ -1660,5 +1673,6 @@
     "platform": {
         "php": ">=5.6"
     },
-    "platform-dev": []
+    "platform-dev": [],
+    "plugin-api-version": "2.1.0"
 }

From 72f791ca39a93fa789ac0492d31d821d442ceab3 Mon Sep 17 00:00:00 2001
From: Nguyen Van Bach <vanbach1213@gmail.com>
Date: Tue, 18 Jun 2024 21:21:52 +0700
Subject: [PATCH 06/13] test: minor improvement in test case

---
 tests/TestCase/PdfTest.php | 30 ++++++++++++++++--------------
 1 file changed, 16 insertions(+), 14 deletions(-)

diff --git a/tests/TestCase/PdfTest.php b/tests/TestCase/PdfTest.php
index cb1c4b9..bb323e1 100644
--- a/tests/TestCase/PdfTest.php
+++ b/tests/TestCase/PdfTest.php
@@ -4,20 +4,22 @@
 use Guenbakku\Cakepdf\Pdf;
 
 class PdfTest extends TestCase {
-        
+
+    protected $output;
+
     public function setUp() {
         $this->output = dirname(__FILE__)."/pdfTest.pdf";
         if (is_file($this->output)) {
             unlink($this->output);
         }
     }
-    
+
     public function tearDown() {
         if (is_file($this->output)) {
             unlink($this->output);
         }
     }
-    
+
     public function testInstanceSnappy() {
         $Pdf = new Pdf();
 
@@ -27,18 +29,18 @@ public function testInstanceSnappy() {
         } else {
             $binary = 'wkhtmltopdf-amd64';
         }
-        
+
         $binary = implode(DS, array(
             VENDOR, 'bin', $binary
         ));
-        
+
         $Snappy = new Knp\Snappy\Pdf($binary);
-        
+
         $this->assertEquals($Snappy, $Pdf->getSnappy());
     }
 
     public function testSetVendorManually() {
-        $Pdf = new Pdf('vendors');
+        $Pdf = new Pdf('vendor');
         $this->assertEquals(true, $Pdf instanceof Pdf);
     }
 
@@ -48,7 +50,7 @@ public function testSetVendorManually() {
     public function testNotFoundVendorFullPath() {
         $Pdf = new Pdf('xxx');
     }
-    
+
     public function testSetOuput() {
         $Pdf = new Pdf();
         $Pdf->add('<p>Test</p>');
@@ -62,14 +64,14 @@ public function testGetOutput() {
         $Pdf->setOutput($this->output);
         $this->assertEquals($this->output, $Pdf->getOutput());
     }
-    
+
     public function testGenerateFileByAdd() {
         $Pdf = new Pdf();
         $Pdf->add('<p>Test</p>');
         $Pdf->render($this->output);
         $this->assertEquals(true, is_file($this->output));
     }
-    
+
     public function testGenerateFileByAddPage() {
         $Pdf = new Pdf();
         $Pdf->add('<p>Test1</p>', true);
@@ -77,14 +79,14 @@ public function testGenerateFileByAddPage() {
         $Pdf->render($this->output);
         $this->assertEquals(true, is_file($this->output));
     }
-    
+
     public function testOutputByAdd() {
         $Pdf = new Pdf();
         $Pdf->add('<p>Test</p>');
         $result = $Pdf->render();
         $this->assertEquals(true, !is_null($result));
     }
-    
+
     public function testOutputByAddPage() {
         $Pdf = new Pdf();
         $Pdf->addPage('<p>Test1</p>');
@@ -92,7 +94,7 @@ public function testOutputByAddPage() {
         $result = $Pdf->render();
         $this->assertEquals(true, !is_null($result));
     }
-    
+
     public function testMagicCall() {
         $Pdf = new Pdf();
         $Pdf->setOption('orientation', 'Landscape');
@@ -100,4 +102,4 @@ public function testMagicCall() {
         $Pdf->render($this->output);
         $this->assertEquals(true, is_file($this->output));
     }
-}
\ No newline at end of file
+}

From 71b3a03d7f79fa015f42474cb0d8be7b96587c2e Mon Sep 17 00:00:00 2001
From: Nguyen Van Bach <vanbach1213@gmail.com>
Date: Tue, 18 Jun 2024 21:30:49 +0700
Subject: [PATCH 07/13] chore: fix some issues of docker environment

1. xdebug compatibility on PHP7.x
2. turn on xdebug.mode coverage on default
3. some libraries as missing for running wkhtmltopdf
---
 .docker/php/Dockerfile | 4 +++-
 .docker/php/php.ini    | 4 ++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/.docker/php/Dockerfile b/.docker/php/Dockerfile
index 343026d..58f8e99 100644
--- a/.docker/php/Dockerfile
+++ b/.docker/php/Dockerfile
@@ -8,9 +8,11 @@ RUN apt-get update && apt-get install -y \
         libjpeg62-turbo-dev \
         libpng-dev \
         libicu-dev \
+        libxrender1 \
+        libfontconfig \
     && docker-php-ext-install -j$(nproc) intl \
     && docker-php-ext-install -j$(nproc) pdo_mysql \
-    && pecl install xdebug \
+    && pecl install xdebug-3.1.5 \
     && docker-php-ext-enable xdebug
 
 # Install zip & git (Required for composer install)
diff --git a/.docker/php/php.ini b/.docker/php/php.ini
index e69de29..af8ef6d 100644
--- a/.docker/php/php.ini
+++ b/.docker/php/php.ini
@@ -0,0 +1,4 @@
+[xdebug]
+zend_extension="xdebug.so"
+xdebug.mode=develop,debug,coverage
+xdebug.start_with_request = yes

From 51c71a252e8a253c1e9a913b64e5beef1417b59b Mon Sep 17 00:00:00 2001
From: Nguyen Van Bach <vanbach1213@gmail.com>
Date: Tue, 18 Jun 2024 21:38:16 +0700
Subject: [PATCH 08/13] security: bump knp-snappy to 1.4.4 to fix
 vulnerabilities

CVE-2023-28115
CVE-2023-41330
---
 composer.json |   2 +-
 composer.lock | 723 ++++++++++++++++++++++++++++++++++----------------
 2 files changed, 489 insertions(+), 236 deletions(-)

diff --git a/composer.json b/composer.json
index 9646ab5..50fba65 100644
--- a/composer.json
+++ b/composer.json
@@ -11,7 +11,7 @@
     ],
     "require": {
         "php": ">=5.6",
-        "knplabs/knp-snappy": "^0.5.0",
+        "knplabs/knp-snappy": "1.4.x",
         "h4cc/wkhtmltopdf-i386": "^0.12.4",
         "h4cc/wkhtmltopdf-amd64": "^0.12.4"
     },
diff --git a/composer.lock b/composer.lock
index d90adef..286e9f7 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "217a95ef26d669bf05aa57a178fb935f",
+    "content-hash": "0566a9ae395fd0878d2b3f74810e4721",
     "packages": [
         {
             "name": "h4cc/wkhtmltopdf-amd64",
@@ -101,24 +101,29 @@
         },
         {
             "name": "knplabs/knp-snappy",
-            "version": "v0.5.0",
+            "version": "v1.4.4",
             "source": {
                 "type": "git",
                 "url": "https://github.com/KnpLabs/snappy.git",
-                "reference": "370da31fa92a8e583e34558c589e630647617a38"
+                "reference": "3db13fe45d12a7bccb2b83f622e5a90f7e40b111"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/KnpLabs/snappy/zipball/370da31fa92a8e583e34558c589e630647617a38",
-                "reference": "370da31fa92a8e583e34558c589e630647617a38",
+                "url": "https://api.github.com/repos/KnpLabs/snappy/zipball/3db13fe45d12a7bccb2b83f622e5a90f7e40b111",
+                "reference": "3db13fe45d12a7bccb2b83f622e5a90f7e40b111",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.6",
-                "symfony/process": "~2.3|~3.0"
+                "php": ">=7.1",
+                "psr/log": "^1.0||^2.0||^3.0",
+                "symfony/process": "~3.4||~4.3||~5.0||~6.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "~4.7"
+                "friendsofphp/php-cs-fixer": "^2.16||^3.0",
+                "pedrotroller/php-cs-custom-fixer": "^2.19",
+                "phpstan/phpstan": "^1.0.0",
+                "phpstan/phpstan-phpunit": "^1.0.0",
+                "phpunit/phpunit": "~7.4||~8.5"
             },
             "suggest": {
                 "h4cc/wkhtmltoimage-amd64": "Provides wkhtmltoimage-amd64 binary for Linux-compatible machines, use version `~0.12` as dependency",
@@ -130,7 +135,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "0.5.x-dev"
+                    "dev-master": "1.x-dev"
                 }
             },
             "autoload": {
@@ -144,7 +149,7 @@
             ],
             "authors": [
                 {
-                    "name": "KnpLabs Team",
+                    "name": "KNP Labs Team",
                     "homepage": "http://knplabs.com"
                 },
                 {
@@ -152,7 +157,7 @@
                     "homepage": "http://github.com/KnpLabs/snappy/contributors"
                 }
             ],
-            "description": "PHP5 library allowing thumbnail, snapshot or PDF generation from a url or a html page. Wrapper for wkhtmltopdf/wkhtmltoimage.",
+            "description": "PHP library allowing thumbnail, snapshot or PDF generation from a url or a html page. Wrapper for wkhtmltopdf/wkhtmltoimage.",
             "homepage": "http://github.com/KnpLabs/snappy",
             "keywords": [
                 "knp",
@@ -162,31 +167,80 @@
                 "thumbnail",
                 "wkhtmltopdf"
             ],
-            "time": "2017-06-16T07:50:40+00:00"
+            "support": {
+                "issues": "https://github.com/KnpLabs/snappy/issues",
+                "source": "https://github.com/KnpLabs/snappy/tree/v1.4.4"
+            },
+            "time": "2023-09-13T12:18:19+00:00"
         },
         {
-            "name": "symfony/process",
-            "version": "v3.3.2",
+            "name": "psr/log",
+            "version": "1.1.4",
             "source": {
                 "type": "git",
-                "url": "https://github.com/symfony/process.git",
-                "reference": "8e30690c67aafb6c7992d6d8eb0d707807dd3eaf"
+                "url": "https://github.com/php-fig/log.git",
+                "reference": "d49695b909c3b7628b6289db5479a1c204601f11"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/process/zipball/8e30690c67aafb6c7992d6d8eb0d707807dd3eaf",
-                "reference": "8e30690c67aafb6c7992d6d8eb0d707807dd3eaf",
+                "url": "https://api.github.com/repos/php-fig/log/zipball/d49695b909c3b7628b6289db5479a1c204601f11",
+                "reference": "d49695b909c3b7628b6289db5479a1c204601f11",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.5.9"
+                "php": ">=5.3.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.3-dev"
+                    "dev-master": "1.1.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Psr\\Log\\": "Psr/Log/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "PHP-FIG",
+                    "homepage": "https://www.php-fig.org/"
                 }
+            ],
+            "description": "Common interface for logging libraries",
+            "homepage": "https://github.com/php-fig/log",
+            "keywords": [
+                "log",
+                "psr",
+                "psr-3"
+            ],
+            "support": {
+                "source": "https://github.com/php-fig/log/tree/1.1.4"
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+                "source": "https://github.com/sebastianbergmann/object-reflector/tree/1.1.3"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/sebastianbergmann",
+                    "type": "github"
+                }
+            ],
+            "time": "2024-03-01T13:56:04+00:00"
         },
         {
             "name": "sebastian/recursion-context",
-            "version": "3.0.0",
+            "version": "3.0.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/recursion-context.git",
-                "reference": "5b0cd723502bac3b006cbf3dbf7a1e3fcefe4fa8"
+                "reference": "9bfd3c6f1f08c026f542032dfb42813544f7d64c"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/recursion-context/zipball/5b0cd723502bac3b006cbf3dbf7a1e3fcefe4fa8",
-                "reference": "5b0cd723502bac3b006cbf3dbf7a1e3fcefe4fa8",
+                "url": "https://api.github.com/repos/sebastianbergmann/recursion-context/zipball/9bfd3c6f1f08c026f542032dfb42813544f7d64c",
+                "reference": "9bfd3c6f1f08c026f542032dfb42813544f7d64c",
                 "shasum": ""
             },
             "require": {
-                "php": "^7.0"
+                "php": ">=7.0"
             },
             "require-dev": {
                 "phpunit/phpunit": "^6.0"
@@ -1472,14 +1689,14 @@
                 "BSD-3-Clause"
             ],
             "authors": [
-                {
-                    "name": "Jeff Welch",
-                    "email": "whatthejeff@gmail.com"
-                },
                 {
                     "name": "Sebastian Bergmann",
                     "email": "sebastian@phpunit.de"
                 },
+                {
+                    "name": "Jeff Welch",
+                    "email": "whatthejeff@gmail.com"
+                },
                 {
                     "name": "Adam Harvey",
                     "email": "aharvey@php.net"
@@ -1487,7 +1704,17 @@
             ],
             "description": "Provides functionality to recursively process PHP variables",
             "homepage": "http://www.github.com/sebastianbergmann/recursion-context",
-            "time": "2017-03-03T06:23:57+00:00"
+            "support": {
+                "issues": "https://github.com/sebastianbergmann/recursion-context/issues",
+                "source": "https://github.com/sebastianbergmann/recursion-context/tree/3.0.2"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/sebastianbergmann",
+                    "type": "github"
+                }
+            ],
+            "time": "2024-03-01T14:07:30+00:00"
         },
         {
             "name": "sebastian/resource-operations",
@@ -1529,6 +1756,10 @@
             ],
             "description": "Provides a list of PHP built-in functions that operate on resources",
             "homepage": "https://www.github.com/sebastianbergmann/resource-operations",
+            "support": {
+                "issues": "https://github.com/sebastianbergmann/resource-operations/issues",
+                "source": "https://github.com/sebastianbergmann/resource-operations/tree/master"
+            },
             "time": "2015-07-28T20:34:47+00:00"
         },
         {
@@ -1572,27 +1803,31 @@
             ],
             "description": "Library that helps with managing the version number of Git-hosted PHP projects",
             "homepage": "https://github.com/sebastianbergmann/version",
+            "support": {
+                "issues": "https://github.com/sebastianbergmann/version/issues",
+                "source": "https://github.com/sebastianbergmann/version/tree/master"
+            },
             "time": "2016-10-03T07:35:21+00:00"
         },
         {
             "name": "theseer/tokenizer",
-            "version": "1.1.0",
+            "version": "1.2.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/theseer/tokenizer.git",
-                "reference": "cb2f008f3f05af2893a87208fe6a6c4985483f8b"
+                "reference": "737eda637ed5e28c3413cb1ebe8bb52cbf1ca7a2"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/theseer/tokenizer/zipball/cb2f008f3f05af2893a87208fe6a6c4985483f8b",
-                "reference": "cb2f008f3f05af2893a87208fe6a6c4985483f8b",
+                "url": "https://api.github.com/repos/theseer/tokenizer/zipball/737eda637ed5e28c3413cb1ebe8bb52cbf1ca7a2",
+                "reference": "737eda637ed5e28c3413cb1ebe8bb52cbf1ca7a2",
                 "shasum": ""
             },
             "require": {
                 "ext-dom": "*",
                 "ext-tokenizer": "*",
                 "ext-xmlwriter": "*",
-                "php": "^7.0"
+                "php": "^7.2 || ^8.0"
             },
             "type": "library",
             "autoload": {
@@ -1612,33 +1847,47 @@
                 }
             ],
             "description": "A small library for converting tokenized PHP source code into XML and potentially other formats",
-            "time": "2017-04-07T12:08:54+00:00"
+            "support": {
+                "issues": "https://github.com/theseer/tokenizer/issues",
+                "source": "https://github.com/theseer/tokenizer/tree/1.2.3"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/theseer",
+                    "type": "github"
+                }
+            ],
+            "time": "2024-03-03T12:36:25+00:00"
         },
         {
             "name": "webmozart/assert",
-            "version": "1.2.0",
+            "version": "1.11.0",
             "source": {
                 "type": "git",
-                "url": "https://github.com/webmozart/assert.git",
-                "reference": "2db61e59ff05fe5126d152bd0655c9ea113e550f"
+                "url": "https://github.com/webmozarts/assert.git",
+                "reference": "11cb2199493b2f8a3b53e7f19068fc6aac760991"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/webmozart/assert/zipball/2db61e59ff05fe5126d152bd0655c9ea113e550f",
-                "reference": "2db61e59ff05fe5126d152bd0655c9ea113e550f",
+                "url": "https://api.github.com/repos/webmozarts/assert/zipball/11cb2199493b2f8a3b53e7f19068fc6aac760991",
+                "reference": "11cb2199493b2f8a3b53e7f19068fc6aac760991",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.3.3 || ^7.0"
+                "ext-ctype": "*",
+                "php": "^7.2 || ^8.0"
+            },
+            "conflict": {
+                "phpstan/phpstan": "<0.12.20",
+                "vimeo/psalm": "<4.6.1 || 4.6.2"
             },
             "require-dev": {
-                "phpunit/phpunit": "^4.6",
-                "sebastian/version": "^1.0.1"
+                "phpunit/phpunit": "^8.5.13"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.3-dev"
+                    "dev-master": "1.10-dev"
                 }
             },
             "autoload": {
@@ -1662,7 +1911,11 @@
                 "check",
                 "validate"
             ],
-            "time": "2016-11-23T20:04:58+00:00"
+            "support": {
+                "issues": "https://github.com/webmozarts/assert/issues",
+                "source": "https://github.com/webmozarts/assert/tree/1.11.0"
+            },
+            "time": "2022-06-03T18:03:27+00:00"
         }
     ],
     "aliases": [],
@@ -1674,5 +1927,5 @@
         "php": ">=5.6"
     },
     "platform-dev": [],
-    "plugin-api-version": "2.1.0"
+    "plugin-api-version": "2.6.0"
 }

From de7db1de0b7c5466f2a3343625c3ca0a44a1eb56 Mon Sep 17 00:00:00 2001
From: Nguyen Van Bach <vanbach1213@gmail.com>
Date: Wed, 19 Jun 2024 08:13:13 +0700
Subject: [PATCH 09/13] test: bump phpunit to 8.5.38

---
 .gitignore                 |   1 +
 composer.json              |   2 +-
 composer.lock              | 772 ++++++++++++++-----------------------
 phpunit.xml.dist           |   3 +-
 tests/TestCase/PdfTest.php |  10 +-
 5 files changed, 288 insertions(+), 500 deletions(-)

diff --git a/.gitignore b/.gitignore
index 89c98f0..f1cbcad 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 /vendors
 /vendor
 /tests/Coverage
+.phpunit.result.cache
diff --git a/composer.json b/composer.json
index 50fba65..e3c9c67 100644
--- a/composer.json
+++ b/composer.json
@@ -16,7 +16,7 @@
         "h4cc/wkhtmltopdf-amd64": "^0.12.4"
     },
     "require-dev": {
-        "phpunit/phpunit": "^5.7|^6.0"
+        "phpunit/phpunit": "^8.5.38"
     },
     "autoload": {
         "psr-4": {
diff --git a/composer.lock b/composer.lock
index 286e9f7..fed4ef3 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "0566a9ae395fd0878d2b3f74810e4721",
+    "content-hash": "2de592395a553ab500805fc45eee7a4f",
     "packages": [
         {
             "name": "h4cc/wkhtmltopdf-amd64",
@@ -418,28 +418,30 @@
         },
         {
             "name": "phar-io/manifest",
-            "version": "1.0.1",
+            "version": "2.0.4",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phar-io/manifest.git",
-                "reference": "2df402786ab5368a0169091f61a7c1e0eb6852d0"
+                "reference": "54750ef60c58e43759730615a392c31c80e23176"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phar-io/manifest/zipball/2df402786ab5368a0169091f61a7c1e0eb6852d0",
-                "reference": "2df402786ab5368a0169091f61a7c1e0eb6852d0",
+                "url": "https://api.github.com/repos/phar-io/manifest/zipball/54750ef60c58e43759730615a392c31c80e23176",
+                "reference": "54750ef60c58e43759730615a392c31c80e23176",
                 "shasum": ""
             },
             "require": {
                 "ext-dom": "*",
+                "ext-libxml": "*",
                 "ext-phar": "*",
-                "phar-io/version": "^1.0.1",
-                "php": "^5.6 || ^7.0"
+                "ext-xmlwriter": "*",
+                "phar-io/version": "^3.0.1",
+                "php": "^7.2 || ^8.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.0.x-dev"
+                    "dev-master": "2.0.x-dev"
                 }
             },
             "autoload": {
@@ -471,26 +473,32 @@
             "description": "Component for reading phar.io manifest information from a PHP Archive (PHAR)",
             "support": {
                 "issues": "https://github.com/phar-io/manifest/issues",
-                "source": "https://github.com/phar-io/manifest/tree/master"
+                "source": "https://github.com/phar-io/manifest/tree/2.0.4"
             },
-            "time": "2017-03-05T18:14:27+00:00"
+            "funding": [
+                {
+                    "url": "https://github.com/theseer",
+                    "type": "github"
+                }
+            ],
+            "time": "2024-03-03T12:33:53+00:00"
         },
         {
             "name": "phar-io/version",
-            "version": "1.0.1",
+            "version": "3.2.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phar-io/version.git",
-                "reference": "a70c0ced4be299a63d32fa96d9281d03e94041df"
+                "reference": "4f7fd7836c6f332bb2933569e566a0d6c4cbed74"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phar-io/version/zipball/a70c0ced4be299a63d32fa96d9281d03e94041df",
-                "reference": "a70c0ced4be299a63d32fa96d9281d03e94041df",
+                "url": "https://api.github.com/repos/phar-io/version/zipball/4f7fd7836c6f332bb2933569e566a0d6c4cbed74",
+                "reference": "4f7fd7836c6f332bb2933569e566a0d6c4cbed74",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.6 || ^7.0"
+                "php": "^7.2 || ^8.0"
             },
             "type": "library",
             "autoload": {
@@ -522,273 +530,46 @@
             "description": "Library for handling version information and constraints",
             "support": {
                 "issues": "https://github.com/phar-io/version/issues",
-                "source": "https://github.com/phar-io/version/tree/master"
+                "source": "https://github.com/phar-io/version/tree/3.2.1"
             },
-            "time": "2017-03-05T17:38:23+00:00"
-        },
-        {
-            "name": "phpdocumentor/reflection-common",
-            "version": "2.2.0",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/phpDocumentor/ReflectionCommon.git",
-                "reference": "1d01c49d4ed62f25aa84a747ad35d5a16924662b"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/phpDocumentor/ReflectionCommon/zipball/1d01c49d4ed62f25aa84a747ad35d5a16924662b",
-                "reference": "1d01c49d4ed62f25aa84a747ad35d5a16924662b",
-                "shasum": ""
-            },
-            "require": {
-                "php": "^7.2 || ^8.0"
-            },
-            "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-2.x": "2.x-dev"
-                }
-            },
-            "autoload": {
-                "psr-4": {
-                    "phpDocumentor\\Reflection\\": "src/"
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Jaap van Otterdijk",
-                    "email": "opensource@ijaap.nl"
-                }
-            ],
-            "description": "Common reflection classes used by phpdocumentor to reflect the code structure",
-            "homepage": "http://www.phpdoc.org",
-            "keywords": [
-                "FQSEN",
-                "phpDocumentor",
-                "phpdoc",
-                "reflection",
-                "static analysis"
-            ],
-            "support": {
-                "issues": "https://github.com/phpDocumentor/ReflectionCommon/issues",
-                "source": "https://github.com/phpDocumentor/ReflectionCommon/tree/2.x"
-            },
-            "time": "2020-06-27T09:03:43+00:00"
-        },
-        {
-            "name": "phpdocumentor/reflection-docblock",
-            "version": "5.3.0",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/phpDocumentor/ReflectionDocBlock.git",
-                "reference": "622548b623e81ca6d78b721c5e029f4ce664f170"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/phpDocumentor/ReflectionDocBlock/zipball/622548b623e81ca6d78b721c5e029f4ce664f170",
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-                "shasum": ""
-            },
-            "require": {
-                "ext-filter": "*",
-                "php": "^7.2 || ^8.0",
-                "phpdocumentor/reflection-common": "^2.2",
-                "phpdocumentor/type-resolver": "^1.3",
-                "webmozart/assert": "^1.9.1"
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-            "require-dev": {
-                "mockery/mockery": "~1.3.2",
-                "psalm/phar": "^4.8"
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-            "extra": {
-                "branch-alias": {
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-                }
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-                "psr-4": {
-                    "phpDocumentor\\Reflection\\": "src"
-                }
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-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
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-            ],
-            "authors": [
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-                    "email": "me@mikevanriel.com"
-                },
-                {
-                    "name": "Jaap van Otterdijk",
-                    "email": "account@ijaap.nl"
-                }
-            ],
-            "description": "With this component, a library can provide support for annotations via DocBlocks or otherwise retrieve information that is embedded in a DocBlock.",
-            "support": {
-                "issues": "https://github.com/phpDocumentor/ReflectionDocBlock/issues",
-                "source": "https://github.com/phpDocumentor/ReflectionDocBlock/tree/5.3.0"
-            },
-            "time": "2021-10-19T17:43:47+00:00"
-        },
-        {
-            "name": "phpdocumentor/type-resolver",
-            "version": "1.6.1",
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-                "url": "https://github.com/phpDocumentor/TypeResolver.git",
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-                }
-            ],
-            "description": "A PSR-5 based resolver of Class names, Types and Structural Element Names",
-            "support": {
-                "issues": "https://github.com/phpDocumentor/TypeResolver/issues",
-                "source": "https://github.com/phpDocumentor/TypeResolver/tree/1.6.1"
-            },
-            "time": "2022-03-15T21:29:03+00:00"
-        },
-        {
-            "name": "phpspec/prophecy",
-            "version": "v1.10.3",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/phpspec/prophecy.git",
-                "reference": "451c3cd1418cf640de218914901e51b064abb093"
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-                "php": "^5.3|^7.0",
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-                "sebastian/recursion-context": "^1.0|^2.0|^3.0|^4.0"
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-            "require-dev": {
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-            "extra": {
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-                }
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-            "autoload": {
-                "psr-4": {
-                    "Prophecy\\": "src/Prophecy"
-                }
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-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Konstantin Kudryashov",
-                    "email": "ever.zet@gmail.com",
-                    "homepage": "http://everzet.com"
-                },
-                {
-                    "name": "Marcello Duarte",
-                    "email": "marcello.duarte@gmail.com"
-                }
-            ],
-            "description": "Highly opinionated mocking framework for PHP 5.3+",
-            "homepage": "https://github.com/phpspec/prophecy",
-            "keywords": [
-                "Double",
-                "Dummy",
-                "fake",
-                "mock",
-                "spy",
-                "stub"
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-            "support": {
-                "issues": "https://github.com/phpspec/prophecy/issues",
-                "source": "https://github.com/phpspec/prophecy/tree/v1.10.3"
-            },
-            "time": "2020-03-05T15:02:03+00:00"
+            "time": "2022-02-21T01:04:05+00:00"
         },
         {
             "name": "phpunit/php-code-coverage",
-            "version": "5.3.2",
+            "version": "7.0.17",
             "source": {
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                 "url": "https://github.com/sebastianbergmann/php-code-coverage.git",
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-                "phpunit/phpunit": "^6.1"
+                "phpunit/phpunit": "^7.5"
+            },
+            "suggest": {
+                "ext-posix": "*"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.1.x-dev"
+                    "dev-master": "4.2-dev"
                 }
             },
             "autoload": {
@@ -1405,9 +1177,15 @@
             ],
             "support": {
                 "issues": "https://github.com/sebastianbergmann/environment/issues",
-                "source": "https://github.com/sebastianbergmann/environment/tree/master"
+                "source": "https://github.com/sebastianbergmann/environment/tree/4.2.5"
             },
-            "time": "2017-07-01T08:51:00+00:00"
+            "funding": [
+                {
+                    "url": "https://github.com/sebastianbergmann",
+                    "type": "github"
+                }
+            ],
+            "time": "2024-03-01T13:49:59+00:00"
         },
         {
             "name": "sebastian/exporter",
@@ -1488,23 +1266,26 @@
         },
         {
             "name": "sebastian/global-state",
-            "version": "2.0.0",
+            "version": "3.0.5",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/global-state.git",
-                "reference": "e8ba02eed7bbbb9e59e43dedd3dddeff4a56b0c4"
+                "reference": "91c7c47047a971f02de57ed6f040087ef110c5d9"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/global-state/zipball/e8ba02eed7bbbb9e59e43dedd3dddeff4a56b0c4",
-                "reference": "e8ba02eed7bbbb9e59e43dedd3dddeff4a56b0c4",
+                "url": "https://api.github.com/repos/sebastianbergmann/global-state/zipball/91c7c47047a971f02de57ed6f040087ef110c5d9",
+                "reference": "91c7c47047a971f02de57ed6f040087ef110c5d9",
                 "shasum": ""
             },
             "require": {
-                "php": "^7.0"
+                "php": ">=7.2",
+                "sebastian/object-reflector": "^1.1.1",
+                "sebastian/recursion-context": "^3.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "^6.0"
+                "ext-dom": "*",
+                "phpunit/phpunit": "^8.0"
             },
             "suggest": {
                 "ext-uopz": "*"
@@ -1512,7 +1293,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.0-dev"
+                    "dev-master": "3.0-dev"
                 }
             },
             "autoload": {
@@ -1537,9 +1318,15 @@
             ],
             "support": {
                 "issues": "https://github.com/sebastianbergmann/global-state/issues",
-                "source": "https://github.com/sebastianbergmann/global-state/tree/2.0.0"
+                "source": "https://github.com/sebastianbergmann/global-state/tree/3.0.5"
             },
-            "time": "2017-04-27T15:39:26+00:00"
+            "funding": [
+                {
+                    "url": "https://github.com/sebastianbergmann",
+                    "type": "github"
+                }
+            ],
+            "time": "2024-03-02T06:13:16+00:00"
         },
         {
             "name": "sebastian/object-enumerator",
@@ -1718,25 +1505,25 @@
         },
         {
             "name": "sebastian/resource-operations",
-            "version": "1.0.0",
+            "version": "2.0.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/resource-operations.git",
-                "reference": "ce990bb21759f94aeafd30209e8cfcdfa8bc3f52"
+                "reference": "72a7f7674d053d548003b16ff5a106e7e0e06eee"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/resource-operations/zipball/ce990bb21759f94aeafd30209e8cfcdfa8bc3f52",
-                "reference": "ce990bb21759f94aeafd30209e8cfcdfa8bc3f52",
+                "url": "https://api.github.com/repos/sebastianbergmann/resource-operations/zipball/72a7f7674d053d548003b16ff5a106e7e0e06eee",
+                "reference": "72a7f7674d053d548003b16ff5a106e7e0e06eee",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.6.0"
+                "php": ">=7.1"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.0.x-dev"
+                    "dev-master": "2.0-dev"
                 }
             },
             "autoload": {
@@ -1757,10 +1544,71 @@
             "description": "Provides a list of PHP built-in functions that operate on resources",
             "homepage": "https://www.github.com/sebastianbergmann/resource-operations",
             "support": {
-                "issues": "https://github.com/sebastianbergmann/resource-operations/issues",
-                "source": "https://github.com/sebastianbergmann/resource-operations/tree/master"
+                "source": "https://github.com/sebastianbergmann/resource-operations/tree/2.0.3"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/sebastianbergmann",
+                    "type": "github"
+                }
+            ],
+            "time": "2024-03-01T13:59:09+00:00"
+        },
+        {
+            "name": "sebastian/type",
+            "version": "1.1.5",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/sebastianbergmann/type.git",
+                "reference": "18f071c3a29892b037d35e6b20ddf3ea39b42874"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/sebastianbergmann/type/zipball/18f071c3a29892b037d35e6b20ddf3ea39b42874",
+                "reference": "18f071c3a29892b037d35e6b20ddf3ea39b42874",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=7.2"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^8.2"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.1-dev"
+                }
+            },
+            "autoload": {
+                "classmap": [
+                    "src/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Sebastian Bergmann",
+                    "email": "sebastian@phpunit.de",
+                    "role": "lead"
+                }
+            ],
+            "description": "Collection of value objects that represent the types of the PHP type system",
+            "homepage": "https://github.com/sebastianbergmann/type",
+            "support": {
+                "issues": "https://github.com/sebastianbergmann/type/issues",
+                "source": "https://github.com/sebastianbergmann/type/tree/1.1.5"
             },
-            "time": "2015-07-28T20:34:47+00:00"
+            "funding": [
+                {
+                    "url": "https://github.com/sebastianbergmann",
+                    "type": "github"
+                }
+            ],
+            "time": "2024-03-01T14:04:07+00:00"
         },
         {
             "name": "sebastian/version",
@@ -1858,64 +1706,6 @@
                 }
             ],
             "time": "2024-03-03T12:36:25+00:00"
-        },
-        {
-            "name": "webmozart/assert",
-            "version": "1.11.0",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/webmozarts/assert.git",
-                "reference": "11cb2199493b2f8a3b53e7f19068fc6aac760991"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/webmozarts/assert/zipball/11cb2199493b2f8a3b53e7f19068fc6aac760991",
-                "reference": "11cb2199493b2f8a3b53e7f19068fc6aac760991",
-                "shasum": ""
-            },
-            "require": {
-                "ext-ctype": "*",
-                "php": "^7.2 || ^8.0"
-            },
-            "conflict": {
-                "phpstan/phpstan": "<0.12.20",
-                "vimeo/psalm": "<4.6.1 || 4.6.2"
-            },
-            "require-dev": {
-                "phpunit/phpunit": "^8.5.13"
-            },
-            "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "1.10-dev"
-                }
-            },
-            "autoload": {
-                "psr-4": {
-                    "Webmozart\\Assert\\": "src/"
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Bernhard Schussek",
-                    "email": "bschussek@gmail.com"
-                }
-            ],
-            "description": "Assertions to validate method input/output with nice error messages.",
-            "keywords": [
-                "assert",
-                "check",
-                "validate"
-            ],
-            "support": {
-                "issues": "https://github.com/webmozarts/assert/issues",
-                "source": "https://github.com/webmozarts/assert/tree/1.11.0"
-            },
-            "time": "2022-06-03T18:03:27+00:00"
         }
     ],
     "aliases": [],
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index af2233f..c9b678b 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -3,7 +3,6 @@
     colors="true"
     processIsolation="false"
     stopOnFailure="false"
-    syntaxCheck="false"
     bootstrap="./tests/bootstrap.php"
     >
     <php>
@@ -23,7 +22,7 @@
             <directory suffix=".php">./src/</directory>
         </whitelist>
     </filter>
-    
+
     <logging>
         <log type="coverage-html" target="./tests/Coverage" lowUpperBound="35"
             highLowerBound="70"/>
diff --git a/tests/TestCase/PdfTest.php b/tests/TestCase/PdfTest.php
index bb323e1..57e73e5 100644
--- a/tests/TestCase/PdfTest.php
+++ b/tests/TestCase/PdfTest.php
@@ -7,14 +7,14 @@ class PdfTest extends TestCase {
 
     protected $output;
 
-    public function setUp() {
+    public function setUp(): void {
         $this->output = dirname(__FILE__)."/pdfTest.pdf";
         if (is_file($this->output)) {
             unlink($this->output);
         }
     }
 
-    public function tearDown() {
+    public function tearDown(): void {
         if (is_file($this->output)) {
             unlink($this->output);
         }
@@ -44,11 +44,9 @@ public function testSetVendorManually() {
         $this->assertEquals(true, $Pdf instanceof Pdf);
     }
 
-    /**
-     * @expectedException   RuntimeException
-     */
     public function testNotFoundVendorFullPath() {
-        $Pdf = new Pdf('xxx');
+        $this->expectException(RuntimeException::class);
+        new Pdf('xxx');
     }
 
     public function testSetOuput() {

From 509561de6c689aaea6524b3250e8f4a77b9f8361 Mon Sep 17 00:00:00 2001
From: Nguyen Van Bach <vanbach1213@gmail.com>
Date: Wed, 19 Jun 2024 08:28:23 +0700
Subject: [PATCH 10/13] chore: drop support for PHP versions prior to 7.2

---
 composer.json | 2 +-
 composer.lock | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/composer.json b/composer.json
index e3c9c67..af2a074 100644
--- a/composer.json
+++ b/composer.json
@@ -10,7 +10,7 @@
         }
     ],
     "require": {
-        "php": ">=5.6",
+        "php": "^7.2",
         "knplabs/knp-snappy": "1.4.x",
         "h4cc/wkhtmltopdf-i386": "^0.12.4",
         "h4cc/wkhtmltopdf-amd64": "^0.12.4"
diff --git a/composer.lock b/composer.lock
index fed4ef3..133c6b7 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "2de592395a553ab500805fc45eee7a4f",
+    "content-hash": "427e402e20adbe91c6562bce5625e845",
     "packages": [
         {
             "name": "h4cc/wkhtmltopdf-amd64",
@@ -1714,7 +1714,7 @@
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": {
-        "php": ">=5.6"
+        "php": "^7.2"
     },
     "platform-dev": [],
     "plugin-api-version": "2.6.0"

From 35638a59aa9c81f34627afed1e611b9e87ec1ff1 Mon Sep 17 00:00:00 2001
From: Nguyen Van Bach <vanbach1213@gmail.com>
Date: Wed, 19 Jun 2024 08:35:00 +0700
Subject: [PATCH 11/13] chore: update README.md

---
 README.md | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/README.md b/README.md
index 5b8646a..5c38811 100644
--- a/README.md
+++ b/README.md
@@ -1,9 +1,14 @@
 # Cakepdf
 
-CakePHP plugin for converting HTML to PDF.  
-This plugin is compatible with CakePHP 2.x and CakePHP 3.x.  
-This plugin could not be made without awesome library [Snappy](https://github.com/KnpLabs/snappy).  
-Thankful to the authors of library Snappy.
+Easily generate PDFs from your HTML content.
+
+This versatile tool can be used as:
+
+* A CakePHP plugin: Seamlessly integrate PDF generation into your CakePHP 2.x and above applications.  
+* A standalone library: Use it independently outside of CakePHP for maximum flexibility.  
+
+Powered by Snappy (https://github.com/KnpLabs/snappy)  
+I want to give a big thanks to the creators of the fantastic Snappy library, which makes this functionality possible.
 
 ## Installation
 

From 671d7200b0d08245603d8bc38ee005a74ef1af96 Mon Sep 17 00:00:00 2001
From: Nguyen Van Bach <vanbach1213@gmail.com>
Date: Wed, 19 Jun 2024 09:20:36 +0700
Subject: [PATCH 12/13] chore: add playground scripts

---
 playground/.gitignore       |  1 +
 playground/generate.php     | 40 +++++++++++++++++++++++
 playground/html/README.html | 64 +++++++++++++++++++++++++++++++++++++
 playground/html/table.html  | 22 +++++++++++++
 4 files changed, 127 insertions(+)
 create mode 100644 playground/.gitignore
 create mode 100644 playground/generate.php
 create mode 100644 playground/html/README.html
 create mode 100644 playground/html/table.html

diff --git a/playground/.gitignore b/playground/.gitignore
new file mode 100644
index 0000000..a136337
--- /dev/null
+++ b/playground/.gitignore
@@ -0,0 +1 @@
+*.pdf
diff --git a/playground/generate.php b/playground/generate.php
new file mode 100644
index 0000000..ffe2463
--- /dev/null
+++ b/playground/generate.php
@@ -0,0 +1,40 @@
+<?php
+if (!defined('DS')) {
+    define('DS', DIRECTORY_SEPARATOR);
+}
+
+if (!defined('PG_PATH')) {
+    define('PG_PATH', dirname(__FILE__));
+}
+
+if (!defined('HTML_PATH')) {
+    define('HTML_PATH', PG_PATH . DS . 'html');
+}
+
+require_once dirname(PG_PATH) . DS . 'vendor' . DS . 'autoload.php';
+
+use Guenbakku\Cakepdf\Pdf;
+
+$pdf = new Pdf();
+
+$page = '<p>Page</p>';
+$pdf->addPage($page)
+    ->addPage($page);
+
+$pdf->setOption('page-size', 'A4')
+    ->setOption('orientation', 'Landscape')
+    ->render(PG_PATH . DS . 'simple.pdf', [], true);
+
+// ---------
+
+$pdf = new Pdf();
+$page = file_get_contents(HTML_PATH . DS . 'table.html');
+$pdf->addPage($page);
+$pdf->render(PG_PATH . DS . 'table.pdf', [], true);
+
+// ---------
+
+$pdf = new Pdf();
+$page = file_get_contents(HTML_PATH . DS . 'README.html');
+$pdf->addPage($page);
+$pdf->render(PG_PATH . DS . 'readme.pdf', [], true);
diff --git a/playground/html/README.html b/playground/html/README.html
new file mode 100644
index 0000000..260a0f3
--- /dev/null
+++ b/playground/html/README.html
@@ -0,0 +1,64 @@
+
+
+
+
+
+
+<style>
+code[class*=language-],pre[class*=language-]{color:#333;background:0 0;font-family:Consolas,"Liberation Mono",Menlo,Courier,monospace;text-align:left;white-space:pre;word-spacing:normal;word-break:normal;word-wrap:normal;line-height:1.4;-moz-tab-size:8;-o-tab-size:8;tab-size:8;-webkit-hyphens:none;-moz-hyphens:none;-ms-hyphens:none;hyphens:none}pre[class*=language-]{padding:.8em;overflow:auto;border-radius:3px;background:#f5f5f5}:not(pre)>code[class*=language-]{padding:.1em;border-radius:.3em;white-space:normal;background:#f5f5f5}.token.blockquote,.token.comment{color:#969896}.token.cdata{color:#183691}.token.doctype,.token.macro.property,.token.punctuation,.token.variable{color:#333}.token.builtin,.token.important,.token.keyword,.token.operator,.token.rule{color:#a71d5d}.token.attr-value,.token.regex,.token.string,.token.url{color:#183691}.token.atrule,.token.boolean,.token.code,.token.command,.token.constant,.token.entity,.token.number,.token.property,.token.symbol{color:#0086b3}.token.prolog,.token.selector,.token.tag{color:#63a35c}.token.attr-name,.token.class,.token.class-name,.token.function,.token.id,.token.namespace,.token.pseudo-class,.token.pseudo-element,.token.url-reference .token.variable{color:#795da3}.token.entity{cursor:help}.token.title,.token.title .token.punctuation{font-weight:700;color:#1d3e81}.token.list{color:#ed6a43}.token.inserted{background-color:#eaffea;color:#55a532}.token.deleted{background-color:#ffecec;color:#bd2c00}.token.bold{font-weight:700}.token.italic{font-style:italic}.language-json .token.property{color:#183691}.language-markup .token.tag .token.punctuation{color:#333}.language-css .token.function,code.language-css{color:#0086b3}.language-yaml .token.atrule{color:#63a35c}code.language-yaml{color:#183691}.language-ruby .token.function{color:#333}.language-markdown .token.url{color:#795da3}.language-makefile .token.symbol{color:#795da3}.language-makefile .token.variable{color:#183691}.language-makefile .token.builtin{color:#0086b3}.language-bash .token.keyword{color:#0086b3}pre[data-line]{position:relative;padding:1em 0 1em 3em}pre[data-line] .line-highlight-wrapper{position:absolute;top:0;left:0;background-color:transparent;display:block;width:100%}pre[data-line] .line-highlight{position:absolute;left:0;right:0;padding:inherit 0;margin-top:1em;background:hsla(24,20%,50%,.08);background:linear-gradient(to right,hsla(24,20%,50%,.1) 70%,hsla(24,20%,50%,0));pointer-events:none;line-height:inherit;white-space:pre}pre[data-line] .line-highlight:before,pre[data-line] .line-highlight[data-end]:after{content:attr(data-start);position:absolute;top:.4em;left:.6em;min-width:1em;padding:0 .5em;background-color:hsla(24,20%,50%,.4);color:#f4f1ef;font:bold 65%/1.5 sans-serif;text-align:center;vertical-align:.3em;border-radius:999px;text-shadow:none;box-shadow:0 1px #fff}pre[data-line] .line-highlight[data-end]:after{content:attr(data-end);top:auto;bottom:.4em}html body{font-family:'Helvetica Neue',Helvetica,'Segoe 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+/* Please visit the URL below for more information: */
+/*   https://shd101wyy.github.io/markdown-preview-enhanced/#/customize-css */
+
+</style>
+<div class="crossnote markdown-preview  ">
+<h1 id="cakepdf">Cakepdf </h1>
+<p>Easily generate PDFs from your HTML content.</p>
+<p>This versatile tool can be used as:</p>
+<ul>
+<li>A CakePHP plugin: Seamlessly integrate PDF generation into your CakePHP 2.x and above applications.</li>
+<li>A standalone library: Use it independently outside of CakePHP for maximum flexibility.</li>
+</ul>
+<p>Powered by Snappy (<a href="https://github.com/KnpLabs/snappy">https://github.com/KnpLabs/snappy</a>)<br>
+I want to give a big thanks to the creators of the fantastic Snappy library, which makes this functionality possible.</p>
+<h2 id="installation">Installation </h2>
+<p>You can install this library using <a href="http://getcomposer.org">composer</a>.</p>
+<pre data-role="codeBlock" data-info="" class="language-text"><code>composer require guenbakku/cakepdf
+</code></pre><h2 id="usage">Usage </h2>
+<pre data-role="codeBlock" data-info="php" class="language-php php"><code><span class="token php language-php"><span class="token delimiter important">&lt;?php</span>
+
+<span class="token keyword keyword-use">use</span> <span class="token package">Guenbakku<span class="token punctuation">\</span>Cakepdf<span class="token punctuation">\</span>Pdf</span><span class="token punctuation">;</span>
+
+<span class="token comment">// Instance object.</span>
+<span class="token comment">// Different with original Snappy, this libary comes with </span>
+<span class="token comment">// wkhtmltopdf binary which is installed as composer dependencies. </span>
+<span class="token comment">// So following setup also automatically set wkhtmltopdf binary's path </span>
+<span class="token comment">// corresponding to current processor's structure (32 or 64 bit).</span>
+<span class="token variable">$Pdf</span> <span class="token operator">=</span> <span class="token keyword keyword-new">new</span> <span class="token class-name">Pdf</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
+
+<span class="token comment">// Add html to render to pdf.</span>
+<span class="token comment">// Break page will be inserted automatically by wkhtmltopdf.</span>
+<span class="token variable">$html</span> <span class="token operator">=</span> <span class="token string single-quoted-string">'&lt;p&gt;Long html for long pdf&lt;/p&gt;'</span><span class="token punctuation">;</span>
+<span class="token variable">$Pdf</span><span class="token operator">-&gt;</span><span class="token function">add</span><span class="token punctuation">(</span><span class="token variable">$html</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
+
+<span class="token comment">// Add each html as a seperated pdf page.</span>
+<span class="token variable">$page</span> <span class="token operator">=</span> <span class="token string single-quoted-string">'&lt;p&gt;Page&lt;/p&gt;'</span><span class="token punctuation">;</span>
+<span class="token variable">$Pdf</span><span class="token operator">-&gt;</span><span class="token function">addPage</span><span class="token punctuation">(</span><span class="token variable">$page</span><span class="token punctuation">)</span>
+    <span class="token operator">-&gt;</span><span class="token function">addPage</span><span class="token punctuation">(</span><span class="token variable">$page</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
+
+<span class="token comment">// Render output to display in browser.</span>
+<span class="token function">header</span><span class="token punctuation">(</span><span class="token string single-quoted-string">'Content-Type: application/pdf'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
+<span class="token function">header</span><span class="token punctuation">(</span><span class="token string single-quoted-string">'Content-Disposition: inline; filename="file.pdf"'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
+<span class="token variable">$result</span> <span class="token operator">=</span> <span class="token variable">$Pdf</span><span class="token operator">-&gt;</span><span class="token function">render</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
+<span class="token keyword keyword-echo">echo</span> <span class="token variable">$result</span><span class="token punctuation">;</span>
+
+<span class="token comment">// Or render output to pdf file.</span>
+<span class="token variable">$output</span> <span class="token operator">=</span> <span class="token string single-quoted-string">'/tmp/cakepdf.pdf'</span><span class="token punctuation">;</span>
+<span class="token variable">$Pdf</span><span class="token operator">-&gt;</span><span class="token function">render</span><span class="token punctuation">(</span><span class="token variable">$output</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
+
+<span class="token comment">// Set options for wkhtmltopdf.</span>
+<span class="token comment">// Basically same with Snappy's interface.</span>
+<span class="token variable">$Pdf</span> <span class="token operator">=</span> <span class="token keyword keyword-new">new</span> <span class="token class-name">Pdf</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
+<span class="token variable">$Pdf</span><span class="token operator">-&gt;</span><span class="token function">setOption</span><span class="token punctuation">(</span><span class="token string single-quoted-string">'page-size'</span><span class="token punctuation">,</span> <span class="token string single-quoted-string">'A4'</span><span class="token punctuation">)</span>
+    <span class="token operator">-&gt;</span><span class="token function">setOption</span><span class="token punctuation">(</span><span class="token string single-quoted-string">'orientation'</span><span class="token punctuation">,</span> <span class="token string single-quoted-string">'Landscape'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
+</span></code></pre>
+      </div>
diff --git a/playground/html/table.html b/playground/html/table.html
new file mode 100644
index 0000000..ade6c28
--- /dev/null
+++ b/playground/html/table.html
@@ -0,0 +1,22 @@
+<table border="1">
+    <tr>
+        <th>Name</th>
+        <th>Age</th>
+        <th>Country</th>
+    </tr>
+    <tr>
+        <td>Harry Depp</td>
+        <td>28</td>
+        <td>Britain</td>
+    </tr>
+    <tr>
+        <td>John Smith</td>
+        <td>35</td>
+        <td>USA</td>
+    </tr>
+    <tr>
+        <td>Ram Krishna</td>
+        <td>19</td>
+        <td>Nepal</td>
+    </tr>
+</table>

From da46e9c9aa59b3fba39af01269fc139495ec7b6a Mon Sep 17 00:00:00 2001
From: Nguyen Van Bach <vanbach1213@gmail.com>
Date: Wed, 19 Jun 2024 09:21:48 +0700
Subject: [PATCH 13/13] refactor: add typehint and beatify code

---
 README.md                  |  14 ++--
 src/Pdf.php                | 148 ++++++++++++++++++++-----------------
 tests/TestCase/PdfTest.php |  58 +++++++--------
 3 files changed, 116 insertions(+), 104 deletions(-)

diff --git a/README.md b/README.md
index 5c38811..289a82e 100644
--- a/README.md
+++ b/README.md
@@ -30,31 +30,31 @@ use Guenbakku\Cakepdf\Pdf;
 // wkhtmltopdf binary which is installed as composer dependencies. 
 // So following setup also automatically set wkhtmltopdf binary's path 
 // corresponding to current processor's structure (32 or 64 bit).
-$Pdf = new Pdf();
+$pdf = new Pdf();
 
 // Add html to render to pdf.
 // Break page will be inserted automatically by wkhtmltopdf.
 $html = '<p>Long html for long pdf</p>';
-$Pdf->add($html);
+$pdf->add($html);
 
 // Add each html as a seperated pdf page.
 $page = '<p>Page</p>';
-$Pdf->addPage($page)
+$pdf->addPage($page)
     ->addPage($page);
 
 // Render output to display in browser.
 header('Content-Type: application/pdf');
 header('Content-Disposition: inline; filename="file.pdf"');
-$result = $Pdf->render();
+$result = $pdf->render();
 echo $result;
 
 // Or render output to pdf file.
 $output = '/tmp/cakepdf.pdf';
-$Pdf->render($output);
+$pdf->render($output);
 
 // Set options for wkhtmltopdf.
 // Basically same with Snappy's interface.
-$Pdf = new Pdf();
-$Pdf->setOption('page-size', 'A4')
+$pdf = new Pdf();
+$pdf->setOption('page-size', 'A4')
     ->setOption('orientation', 'Landscape');
 ```
diff --git a/src/Pdf.php b/src/Pdf.php
index 64e6516..dccbc50 100644
--- a/src/Pdf.php
+++ b/src/Pdf.php
@@ -1,9 +1,8 @@
 <?php
 /**
- * CakePHP plugin for converting HTML to PDF.
- * This plugin could not be made without awesome library "Knp\Snappy\Pdf".
- * Thankful to the authors of library Snappy.
- * 
+ * Easily generate PDFs from your HTML content.
+ * This is a simple wrapper of awesome library "Knp\Snappy\Pdf".
+ *
  * @copyright   NVB
  * @license     http://www.opensource.org/licenses/mit-license.php MIT License
  */
@@ -12,21 +11,36 @@
 use RuntimeException;
 
 class Pdf {
-    // Path to vendor's folder
+    /**
+     * Path to vendor's folder
+     * @var string[]
+     */
     protected $vendor;
-    
-    // Snappy object
-    protected $Snappy;
-    
-    // Path of wkhtmltopdf executable binary
+
+    /**
+     * Snappy object
+     * @var \Knp\Snappy\Pdf
+     */
+    protected $snappy;
+
+    /**
+     * Path of wkhtmltopdf executable binary
+     * @var string
+     */
     protected $binary;
-    
-    // Html that will be rendered to pdf
+
+    /**
+     * Html that will be rendered to pdf
+     * @var string
+     */
     protected $html;
-    
-    // Path of output pdf
+
+    /**
+     * Path of output pdf
+     * @var string
+     */
     protected $output;
-    
+
     protected $pageStyle = '
         <style type="text/css">
             .page-container {
@@ -38,22 +52,25 @@ class Pdf {
                 page-break-after: auto;
             }
         </style>';
-    
+
     protected $pageContainer = '<div class="page-container">%s</div>';
-    
-    public function __construct($vendor = array('vendor', 'vendors')) {
+
+    /**
+     * @param string[]|string $vendor
+     */
+    public function __construct($vendor = ['vendor', 'vendors']) {
         $this->_setVendor($vendor);
         $this->_setBinary();
-        $this->Snappy = new \Knp\Snappy\Pdf($this->binary);
+        $this->snappy = new \Knp\Snappy\Pdf($this->binary);
     }
-    
+
     /**
      * Set output path of pdf file
      *
-     * @param   string: output path
-     * @return  object: this object
+     * @param string $path path of output file
+     * @return Pdf this object
      */
-    public function setOutput($path) {
+    public function setOutput(string $path): Pdf {
         $this->output = $path;
         return $this;
     }
@@ -61,20 +78,19 @@ public function setOutput($path) {
     /**
      * Get output path of pdf file
      *
-     * @param   void
-     * @return  string
+     * @return string
      */
-    public function getOutput() {
+    public function getOutput(): ?string {
         return $this->output;
     }
 
     /**
-     * Add html as seperated pdf page
+     * Add html as separated pdf page
      *
-     * @param   string: html
-     * @return  object: this object
+     * @param string $html html string of a page
+     * @return Pdf this object
      */
-    public function addPage($html) {
+    public function addPage(string $html): Pdf {
         $page = sprintf($this->pageContainer, $html);
         if (strpos($this->html, $this->pageStyle) === false) {
             $this->html .= $this->pageStyle . $page;
@@ -87,11 +103,11 @@ public function addPage($html) {
     /**
      * Add html to generate pdf
      *
-     * @param   string: html
-     * @param   bool: add as seperated page or not
-     * @return  object: this object
+     * @param string $html html string
+     * @param bool $breakPage add as separated page or not
+     * @return Pdf this object
      */
-    public function add($html, $breakPage = false) {
+    public function add(string $html, bool $breakPage = false): Pdf {
         if ($breakPage === false) {
             $this->html .= $html;
         } else {
@@ -99,52 +115,49 @@ public function add($html, $breakPage = false) {
         }
         return $this;
     }
-    
+
     /**
      * Render pdf from added html
      *
-     * @param   string: output path
-     * @param   array: an array of options for this generation only
-     * @param   bool: overwrite existing file or not. 
-     *                Only take effect if output is not null
-     * @return  string|null: pdf content or null if output to file
+     * @param string $output path of output file
+     * @param array $options an array of options for this generation only
+     * @param bool $overwrite overwrite existing file or not. Only take effect if output is not null
+     * @return string|null pdf content or null if output to file
      */
-    public function render($output = null, $options = array(), $overwrite = false) {
+    public function render(?string $output = null, array $options = [], bool $overwrite = false) {
         if ($output !== null) {
             $this->setOutput($output);
         }
         if (empty($this->getOutput())) {
-            return $this->Snappy->getOutputFromHtml($this->html, $options);
+            return $this->snappy->getOutputFromHtml($this->html, $options);
         } else {
-            return $this->Snappy->generateFromHtml($this->html, $this->getOutput(), $options, $overwrite);
+            return $this->snappy->generateFromHtml($this->html, $this->getOutput(), $options, $overwrite);
         }
     }
-    
+
     /**
      * Return Snappy object
      *
-     * @param   void
-     * @return  object: Snappy object
+     * @return  object Snappy object
      */
-    public function getSnappy() {
-        return $this->Snappy;
+    public function getSnappy(): \Knp\Snappy\Pdf {
+        return $this->snappy;
     }
-    
+
     /**
      * This magic is used for calling methods of Snappy object
      */
     public function __call($name, $arguments) {
-        $this->Snappy->$name(...$arguments);
+        $this->snappy->$name(...$arguments);
         return $this;
     }
-    
+
     /**
      * Find root of application
      *
-     * @param   string: path of current script
-     * @return  string: path of root
+     * @return string path of root
      */
-    protected function _findVendorFullPath() {
+    protected function _findVendorFullPath(): string {
         $findRoot = function ($vendor) {
             $root = __FILE__;
             do {
@@ -154,10 +167,10 @@ protected function _findVendorFullPath() {
                     return $root;
                 }
             } while ($root !== $lastRoot);
-            
+
             return null;
         };
-        
+
         foreach ($this->vendor as $vendor) {
             $root = $findRoot($vendor);
             if (!empty($root)) {
@@ -166,49 +179,48 @@ protected function _findVendorFullPath() {
                 ));
             }
         }
-        
+
         throw new RuntimeException('Cannot find the root of the application');
     }
 
     /**
      * Set path to vendor's folder
      *
-     * @param   string|array: path(s) to vendor's folder
-     * @return  object: this object
+     * @param string[]|string $vendor path(s) of vendor's folder
+     * @return Pdf this object
      */
-    protected function _setVendor($vendor) {
+    protected function _setVendor($vendor): Pdf {
         if (!is_array($vendor)) {
             $vendor = array($vendor);
         }
         $this->vendor = $vendor;
         return $this;
     }
-    
+
     /**
      * Set path of wkhtmltopdf.
-     * This will set the correct wkhtmltopdf binary 
+     * This will set the correct wkhtmltopdf binary
      * corresponding to structure of current processor (32 or 64 bit)
      *
-     * @param   void
-     * @return  string: path of binary
+     * @return string path of binary
      */
-    protected function _setBinary() {
+    protected function _setBinary(): string {
         $is32bit = PHP_INT_SIZE === 4;
         if ($is32bit) {
             $binary = 'wkhtmltopdf-i386';
         } else {
             $binary = 'wkhtmltopdf-amd64';
         }
-        
+
         $vendorFullPath = $this->_findVendorFullPath();
         $binary = implode(DIRECTORY_SEPARATOR, array(
             $vendorFullPath, 'bin', $binary
         ));
-        
+
         if (is_file($binary) || is_link($binary)) {
             $this->binary = $binary;
         }
-        
+
         return $this->binary;
     }
 }
diff --git a/tests/TestCase/PdfTest.php b/tests/TestCase/PdfTest.php
index 57e73e5..307e2ea 100644
--- a/tests/TestCase/PdfTest.php
+++ b/tests/TestCase/PdfTest.php
@@ -21,7 +21,7 @@ public function tearDown(): void {
     }
 
     public function testInstanceSnappy() {
-        $Pdf = new Pdf();
+        $pdf = new Pdf();
 
         $is32bit = PHP_INT_SIZE === 4;
         if ($is32bit) {
@@ -36,12 +36,12 @@ public function testInstanceSnappy() {
 
         $Snappy = new Knp\Snappy\Pdf($binary);
 
-        $this->assertEquals($Snappy, $Pdf->getSnappy());
+        $this->assertEquals($Snappy, $pdf->getSnappy());
     }
 
     public function testSetVendorManually() {
-        $Pdf = new Pdf('vendor');
-        $this->assertEquals(true, $Pdf instanceof Pdf);
+        $pdf = new Pdf('vendor');
+        $this->assertEquals(true, $pdf instanceof Pdf);
     }
 
     public function testNotFoundVendorFullPath() {
@@ -50,54 +50,54 @@ public function testNotFoundVendorFullPath() {
     }
 
     public function testSetOuput() {
-        $Pdf = new Pdf();
-        $Pdf->add('<p>Test</p>');
-        $Pdf->setOutput($this->output);
-        $Pdf->render();
+        $pdf = new Pdf();
+        $pdf->add('<p>Test</p>');
+        $pdf->setOutput($this->output);
+        $pdf->render();
         $this->assertEquals(true, is_file($this->output));
     }
 
     public function testGetOutput() {
-        $Pdf = new Pdf();
-        $Pdf->setOutput($this->output);
-        $this->assertEquals($this->output, $Pdf->getOutput());
+        $pdf = new Pdf();
+        $pdf->setOutput($this->output);
+        $this->assertEquals($this->output, $pdf->getOutput());
     }
 
     public function testGenerateFileByAdd() {
-        $Pdf = new Pdf();
-        $Pdf->add('<p>Test</p>');
-        $Pdf->render($this->output);
+        $pdf = new Pdf();
+        $pdf->add('<p>Test</p>');
+        $pdf->render($this->output);
         $this->assertEquals(true, is_file($this->output));
     }
 
     public function testGenerateFileByAddPage() {
-        $Pdf = new Pdf();
-        $Pdf->add('<p>Test1</p>', true);
-        $Pdf->addPage('<p>Test2</p>');
-        $Pdf->render($this->output);
+        $pdf = new Pdf();
+        $pdf->add('<p>Test1</p>', true);
+        $pdf->addPage('<p>Test2</p>');
+        $pdf->render($this->output);
         $this->assertEquals(true, is_file($this->output));
     }
 
     public function testOutputByAdd() {
-        $Pdf = new Pdf();
-        $Pdf->add('<p>Test</p>');
-        $result = $Pdf->render();
+        $pdf = new Pdf();
+        $pdf->add('<p>Test</p>');
+        $result = $pdf->render();
         $this->assertEquals(true, !is_null($result));
     }
 
     public function testOutputByAddPage() {
-        $Pdf = new Pdf();
-        $Pdf->addPage('<p>Test1</p>');
-        $Pdf->addPage('<p>Test2</p>');
-        $result = $Pdf->render();
+        $pdf = new Pdf();
+        $pdf->addPage('<p>Test1</p>');
+        $pdf->addPage('<p>Test2</p>');
+        $result = $pdf->render();
         $this->assertEquals(true, !is_null($result));
     }
 
     public function testMagicCall() {
-        $Pdf = new Pdf();
-        $Pdf->setOption('orientation', 'Landscape');
-        $Pdf->add('<p>Test</p>');
-        $Pdf->render($this->output);
+        $pdf = new Pdf();
+        $pdf->setOption('orientation', 'Landscape');
+        $pdf->add('<p>Test</p>');
+        $pdf->render($this->output);
         $this->assertEquals(true, is_file($this->output));
     }
 }