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Add support for Separation colors #1322

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c52af89
Add support for Separation colors
Oct 11, 2022
df7bdaf
Fix Separation stroking colors throwing an exception, add integration…
Oct 13, 2022
13e1e4d
Add support for overprinting
Oct 13, 2022
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143 changes: 143 additions & 0 deletions apps/deno/tests/test12.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -274,11 +274,154 @@ const thirdPage = async (pdfDoc: PDFDocument, assets: Assets) => {
});
};

const fourthPage = async (pdfDoc: PDFDocument) => {
const page = pdfDoc.addPage();

const pdfSeparation = await pdfDoc.embedSeparation(
'PANTONE 123 C',
cmyk(0, 0.22, 0.83, 0),
);

const color = page.getSeparationColor(pdfSeparation, 0.5);
const borderColor = page.getSeparationColor(pdfSeparation, 1);

page.drawRectangle({
x: inchToPt(0),
y: inchToPt(0),
width: inchToPt(8.5),
height: inchToPt(12),
color: cmyk(0, 0, 0, 1),
});

page.drawText('This text will be printed using a spot color', {
x: inchToPt(0.5),
y: inchToPt(11),
size: 16,
color,
});

// No overprint

page.drawSvgPath('M 100 100 L 300 100 L 200 300 z', {
x: inchToPt(-1),
y: inchToPt(12),
color,
borderColor,
borderWidth: 2,
});

page.drawRectangle({
x: inchToPt(2),
y: inchToPt(8),
width: 60,
height: 160,
rotate: degrees(-30),
color,
borderColor,
borderWidth: 2,
});

page.drawCircle({
x: inchToPt(5),
y: inchToPt(9),
color,
borderColor,
borderWidth: 2,
});

// Overprint

page.drawText('This text will be printed over the existing background', {
x: inchToPt(0.5),
y: inchToPt(7),
color,
size: 16,
overprint: true,
});

page.drawSvgPath('M 100 100 L 300 100 L 200 300 z', {
x: inchToPt(-1),
y: inchToPt(8),
color,
borderColor,
borderWidth: 2,
overprint: true,
});

page.drawRectangle({
x: inchToPt(2),
y: inchToPt(4),
width: 60,
height: 160,
rotate: degrees(-30),
color,
borderColor,
borderWidth: 2,
overprint: true,
});

page.drawCircle({
x: inchToPt(5),
y: inchToPt(5),
color,
borderColor,
borderWidth: 2,
overprint: true,
});

// Overprint only for strokes

page.drawText(
'Only the filling will be overprinted on the following shapes',
{
x: inchToPt(0.5),
y: inchToPt(3),
color,
size: 16,
overprint: true,
},
);

page.drawSvgPath('M 100 100 L 300 100 L 200 300 z', {
x: inchToPt(-1),
y: inchToPt(4),
color,
borderColor,
borderWidth: 2,
overprint: false,
nonStrokingOverprint: true,
});

page.drawRectangle({
x: inchToPt(2),
y: inchToPt(0),
width: 60,
height: 160,
rotate: degrees(-30),
color,
borderColor,
borderWidth: 2,
overprint: false,
nonStrokingOverprint: true,
});

page.drawCircle({
x: inchToPt(5),
y: inchToPt(1),
color,
borderColor,
borderWidth: 2,
overprint: false,
nonStrokingOverprint: true,
});
};

export default async (assets: Assets) => {
const pdfDoc = await PDFDocument.create();
await firstPage(pdfDoc);
await secondPage(pdfDoc);
await thirdPage(pdfDoc, assets);
await fourthPage(pdfDoc);

const pdfBytes = await pdfDoc.save();
return pdfBytes;
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143 changes: 143 additions & 0 deletions apps/node/tests/test12.ts
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Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -269,11 +269,154 @@ const thirdPage = async (pdfDoc: PDFDocument, assets: Assets) => {
});
};

const fourthPage = async (pdfDoc: PDFDocument) => {
const page = pdfDoc.addPage();

const pdfSeparation = await pdfDoc.embedSeparation(
'PANTONE 123 C',
cmyk(0, 0.22, 0.83, 0),
);

const color = page.getSeparationColor(pdfSeparation, 0.5);
const borderColor = page.getSeparationColor(pdfSeparation, 1);

page.drawRectangle({
x: inchToPt(0),
y: inchToPt(0),
width: inchToPt(8.5),
height: inchToPt(12),
color: cmyk(0, 0, 0, 1),
});

page.drawText('This text will be printed using a spot color', {
x: inchToPt(0.5),
y: inchToPt(11),
size: 16,
color,
});

// No overprint

page.drawSvgPath('M 100 100 L 300 100 L 200 300 z', {
x: inchToPt(-1),
y: inchToPt(12),
color,
borderColor,
borderWidth: 2,
});

page.drawRectangle({
x: inchToPt(2),
y: inchToPt(8),
width: 60,
height: 160,
rotate: degrees(-30),
color,
borderColor,
borderWidth: 2,
});

page.drawCircle({
x: inchToPt(5),
y: inchToPt(9),
color,
borderColor,
borderWidth: 2,
});

// Overprint

page.drawText('This text will be printed over the existing background', {
x: inchToPt(0.5),
y: inchToPt(7),
color,
size: 16,
overprint: true,
});

page.drawSvgPath('M 100 100 L 300 100 L 200 300 z', {
x: inchToPt(-1),
y: inchToPt(8),
color,
borderColor,
borderWidth: 2,
overprint: true,
});

page.drawRectangle({
x: inchToPt(2),
y: inchToPt(4),
width: 60,
height: 160,
rotate: degrees(-30),
color,
borderColor,
borderWidth: 2,
overprint: true,
});

page.drawCircle({
x: inchToPt(5),
y: inchToPt(5),
color,
borderColor,
borderWidth: 2,
overprint: true,
});

// Overprint only for strokes

page.drawText(
'Only the filling will be overprinted on the following shapes',
{
x: inchToPt(0.5),
y: inchToPt(3),
color,
size: 16,
overprint: true,
},
);

page.drawSvgPath('M 100 100 L 300 100 L 200 300 z', {
x: inchToPt(-1),
y: inchToPt(4),
color,
borderColor,
borderWidth: 2,
overprint: false,
nonStrokingOverprint: true,
});

page.drawRectangle({
x: inchToPt(2),
y: inchToPt(0),
width: 60,
height: 160,
rotate: degrees(-30),
color,
borderColor,
borderWidth: 2,
overprint: false,
nonStrokingOverprint: true,
});

page.drawCircle({
x: inchToPt(5),
y: inchToPt(1),
color,
borderColor,
borderWidth: 2,
overprint: false,
nonStrokingOverprint: true,
});
};

export default async (assets: Assets) => {
const pdfDoc = await PDFDocument.create();
await firstPage(pdfDoc);
await secondPage(pdfDoc);
await thirdPage(pdfDoc, assets);
await fourthPage(pdfDoc);

const pdfBytes = await pdfDoc.save();
return pdfBytes;
Expand Down
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