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