Updated viewer/[net|java]/how-to-check-if-file-is-encrypted topic

java/developer-guide/retrieving-document-information/how-to-check-if-file-is-encrypted.md

@@ -11,7 +11,23 @@ hideChildren: False
 
 The encryption protects data and allows only authorized people to open the file. So, only those who have an encryption key (such as a password) can open and view a file.
 
-If you want to check if a file is encrypted, use the `getFileInfo()` method that returns the file type and flag that indicates if the file is encrypted. The following code snippet shows how to check if a file is encrypted.
+## Check if a file is encrypted online
+
+1. Navigate to the [GroupDocs.Viewer App](https://products.groupdocs.app/viewer/total). 
+
+![GroupDocs.Viewer App](/viewer/java/images/developer-guide/retrieving-document-information/how-to-check-if-file-is-encrypted/viewe-app-upload-file.png)
+
+2. Upload your file. If you are prompted to enter a password to open the file, it is encrypted.
+
+![GroupDocs.Viewer App password prompt](/viewer/java/images/developer-guide/retrieving-document-information/how-to-check-if-file-is-encrypted/viewe-app-password-prompt.png)
+
+{{< alert style="warning" >}}
+It's important to be cautious about uploading sensitive files to online services. For critical files, we recommend using a programmatic method.
+{{< /alert >}}
+
+## Programmatically check for file encryption
+
+Use the _getFileInfo()_ method that returns the file type and flag that indicates if the file is encrypted. The following code snippet shows how to check if a file is encrypted. 
 
 {{< tabs "example1">}}
 {{< tab "Java" >}}
@@ -20,19 +36,24 @@ import com.groupdocs.viewer.Viewer;
 import com.groupdocs.viewer.results.FileInfo;
 // ...
 
-try (Viewer viewer = new Viewer("encrypted.pdf")) {
+try (Viewer viewer = new Viewer("protected.pdf")) {
     FileInfo fileInfo = viewer.getFileInfo();
 
     System.out.println("File type is: " + fileInfo.getFileType());
     System.out.println("File encrypted: " + fileInfo.isEncrypted());
 }
-
 ```
 {{< /tab >}}
 {{< /tabs >}}
 
+{{< alert style="tip" >}}
+
+Download a [sample application](/viewer/java/sample-apps/developer-guide/retrieving-document-information/how-to-check-if-file-is-encrypted/how-to-check-if-file-is-encrypted.zip) written in Java that uses this code snippet. You can run the application locally using the `mvn exec:java` command. Ensure you have the [Java](https://www.oracle.com/java/technologies/downloads/) and [Maven](https://maven.apache.org/download.cgi) installed beforehand.
+
+{{< /alert >}}
+
 The following image shows a sample console output:
 
 ![](/viewer/java/images/how-to-check-if-file-is-encrypted.png)
 
-To learn how to open an encrypted file, please refer to [Load password-protected document]({{< ref "/viewer/java/developer-guide/loading-documents/load-password-protected-document.md" >}}) page.
+To learn how to open an encrypted file, please refer to [Load password-protected document]({{< ref "/viewer/java/developer-guide/loading-documents/load-password-protected-document.md" >}}) documentation topic.

net/developer-guide/retrieving-document-information/how-to-check-if-file-is-encrypted.md

@@ -11,18 +11,33 @@ hideChildren: False
 
 The encryption protects data and allows only authorized people to open the file. So, only those who have an encryption key (such as a password) can open and view a file.
 
-If you want to check if a file is encrypted, use the _GetFileInfo()_ method that returns the file type and flag that indicates if the file is encrypted. The following code snippet shows how to check if a file is encrypted. Also, you can find this example [on GitHub](https://github.com/groupdocs-viewer/GroupDocs.Viewer-for-.NET/blob/master/Examples/GroupDocs.Viewer.Examples.CSharp/BasicUsage/CheckFileIsEncrypted.cs).
+## Check if a file is encrypted online
+
+1. Navigate to the [GroupDocs.Viewer App](https://products.groupdocs.app/viewer/total). 
+
+![GroupDocs.Viewer App](/viewer/net/images/developer-guide/retrieving-document-information/how-to-check-if-file-is-encrypted/viewe-app-upload-file.png)
+
+2. Upload your file. If you are prompted to enter a password to open the file, it is encrypted.
+
+![GroupDocs.Viewer App password prompt](/viewer/net/images/developer-guide/retrieving-document-information/how-to-check-if-file-is-encrypted/viewe-app-password-prompt.png)
+
+{{< alert style="warning" >}}
+It's important to be cautious about uploading sensitive files to online services. For critical files, we recommend using a programmatic method.
+{{< /alert >}}
+
+## Programmatically check for file encryption
+
+Use the _GetFileInfo()_ method that returns the file type and flag that indicates if the file is encrypted. The following code snippet shows how to check if a file is encrypted. 
 
 {{< tabs "example1">}}
 {{< tab "C#" >}}
 ```csharp
 using System;
 using GroupDocs.Viewer;
-using GroupDocs.Viewer.Options;
 using GroupDocs.Viewer.Results;
 // ...
 
-using (Viewer viewer = new Viewer("encrypted.pdf"))
+using (Viewer viewer = new Viewer("protected.pdf"))
 {
     // Get file information.
     FileInfo fileInfo = viewer.GetFileInfo();
@@ -37,13 +52,12 @@ using (Viewer viewer = new Viewer("encrypted.pdf"))
 ```vb
 Imports System
 Imports GroupDocs.Viewer
-Imports GroupDocs.Viewer.Options
 Imports GroupDocs.Viewer.Results
 ' ...
 
 Module Program
     Sub Main(args As String())
-        Using viewer As Viewer = New Viewer("encrypted.pdf")
+        Using viewer As Viewer = New Viewer("protected.pdf")
             ' Get file information.
             Dim fileInfo As FileInfo = viewer.GetFileInfo()
 
@@ -57,8 +71,14 @@ End Module
 {{< /tab >}}
 {{< /tabs >}}
 
+{{< alert style="tip" >}}
+
+Download a [sample application](/viewer/net/sample-apps/developer-guide/retrieving-document-information/how-to-check-if-file-is-encrypted/how-to-check-if-file-is-encrypted.zip) written in C# that uses this code snippet. You can run the application locally using the `dotnet run` command. Ensure you have the [.NET SDK](https://dotnet.microsoft.com/download) installed beforehand.
+
+{{< /alert >}}
+
 The following image shows a sample console output:
 
 ![](/viewer/net/images/how-to-check-if-file-is-encrypted.png)
 
-To learn how to open an encrypted file, please refer to [Load password-protected document]({{< ref "/viewer/net/developer-guide/loading-documents/load-password-protected-document.md" >}}) page.
+To learn how to open an encrypted file, please refer to [Load password-protected document]({{< ref "/viewer/net/developer-guide/loading-documents/load-password-protected-document.md" >}}) documentation topic.