Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/docs/cookbook/javascript/basics.md @ 40:aa33339d6b8a upstream

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ADD: MuPDF v1.26.10: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.5.
author Franz Glasner <fzglas.hg@dom66.de>
date Sat, 11 Oct 2025 11:31:38 +0200
parents b50eed0cc0ef
children
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b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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1 # Basics
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3 ## Loading a PDF
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5 The following example demonstrates how to load a document and then print out the page count.
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6 Ensure you have a PDF file named "test.pdf" alongside this example before running it.
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8 import * as mupdf from "mupdf"
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10 var doc = mupdf.Document.openDocument("test.pdf")
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11 console.log(doc.countPages())
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13 ## Creating a PDF
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15 How to create a new PDF file with a single blank page:
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17 import * as mupdf from "mupdf"
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19 var doc = new mupdf.PDFDocument()
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20 doc.insertPage(-1, doc.addPage([0, 0, 595, 842], 0, null, ""))
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21 doc.save("blank.pdf")
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23 ## Adding an annotation
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25 How to add a simple annotation to a PDF file:
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27 import * as mupdf from "mupdf"
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29 var doc = mupdf.Document.openDocument("blank.pdf")
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31 var page = doc.loadPage(0)
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33 var annot = page.createAnnotation("FreeText")
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34 annot.setRect([10, 10, 200, 100])
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35 annot.setContents("Hello, world!")
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37 page.update()
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39 doc.save("annotation.pdf")
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41 ## Converting a PDF to plain text
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43 import * as mupdf from "mupdf"
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45 var doc = mupdf.Document.openDocument("test.pdf")
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46 for (var i = 0; i < doc.countpages(); ++i) {
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47 var page = doc.loadPage(i)
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48 var text = page.toStructuredText().asText()
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49 console.log(text)
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50 }
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52 ## Converting a PDF to image files
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54 import * as fs from "fs"
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55 import * as mupdf from "mupdf"
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57 var doc = mupdf.Document.openDocument("test.pdf")
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58 for (var i = 0; i < doc.countpages(); ++i) {
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59 var page = doc.loadPage(i)
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60 var pixmap = page.toPixmap(
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61 mupdf.Matrix.scale(96 / 72, 96 / 72),
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62 mupdf.ColorSpace.DeviceRGB
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63 )
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64 var buffer = pixmap.asPNG()
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65 fs.writeFileSync("page" + (i+1) + ".png", buffer)
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66 }