62 lines
1.4 KiB
JavaScript
62 lines
1.4 KiB
JavaScript
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// Create a PDF from scratch.
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// This example creates a new PDF file from scratch, using only the low level APIs.
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// This assumes a basic working knowledge of the PDF file format.
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// Create a new empty document with no pages.
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var pdf = new PDFDocument()
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// Create and add a font resource.
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var font = pdf.addObject({
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Type: "Font",
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Subtype: "Type1",
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Encoding: "WinAnsiEncoding",
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BaseFont: "Times-Roman",
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})
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// Create and add an image resource:
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var image = pdf.addRawStream(
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// The raw stream contents, hex encoded to match the Filter entry:
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"004488CCEEBB7733>",
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// The image object dictionary:
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{
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Type: "XObject",
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Subtype: "Image",
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Width: 4,
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Height: 2,
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BitsPerComponent: 8,
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ColorSpace: "DeviceGray",
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Filter: "ASCIIHexDecode",
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}
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);
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// Create resource dictionary.
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var resources = pdf.addObject({
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Font: { Tm: font },
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XObject: { Im0: image },
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})
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// Create content stream.
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var buffer = new Buffer()
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buffer.writeLine("10 10 280 330 re s")
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buffer.writeLine("q 200 0 0 200 50 100 cm /Im0 Do Q")
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buffer.writeLine("BT /Tm 16 Tf 50 50 TD (Hello, world!) Tj ET")
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var contents = pdf.addStream(buffer)
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// Create page object.
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var page = pdf.addObject({
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Type: "Page",
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MediaBox: [0,0,300,350],
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Contents: contents,
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Resources: resources,
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})
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// Insert page object into page tree.
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var pagetree = pdf.getTrailer().Root.Pages
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pagetree.Count = 1
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pagetree.Kids = [ page ]
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page.Parent = pagetree
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// Save the document.
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pdf.save("out.pdf")
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