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var fs = require('fs'); | ||
var path = require('path'); | ||
var PDFDocument = require('pdf-lib').PDFDocument; | ||
var pdflibAddPlaceholder = require('@signpdf/placeholder-pdf-lib').pdflibAddPlaceholder; | ||
var signpdf = require('@signpdf/signpdf').default; | ||
var P12Signer = require('@signpdf/signer-p12').P12Signer; | ||
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function work() { | ||
// contributing.pdf is the file that is going to be signed | ||
var sourcePath = path.join(__dirname, '/../../../resources/contributing.pdf'); | ||
var pdfBuffer = fs.readFileSync(sourcePath); | ||
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// certificate.p12 is the certificate that is going to be used to sign | ||
var certificatePath = path.join(__dirname, '/../../../resources/certificate.p12'); | ||
var certificateBuffer = fs.readFileSync(certificatePath); | ||
var signer = new P12Signer(certificateBuffer); | ||
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// Load the document into PDF-LIB | ||
PDFDocument.load(pdfBuffer).then(function (pdfDoc) { | ||
// Add a placeholder for a signature. | ||
pdflibAddPlaceholder({ | ||
pdfDoc: pdfDoc, | ||
reason: 'The user is decalaring consent through JavaScript.', | ||
contactInfo: '[email protected]', | ||
name: 'John Doe', | ||
location: 'Free Text Str., Free World', | ||
}); | ||
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// Convert the PDF-LIB PDFDocument to Buffer | ||
pdfDoc.save({useObjectStreams: false}).then(function (pdfBytes) { | ||
var pdfWithPlaceholder = Buffer.from(pdfBytes); | ||
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// And finally sign the document. | ||
signpdf | ||
.sign(pdfWithPlaceholder, signer) | ||
.then(function (signedPdf) { | ||
// signedPdf is a Buffer of an electronically signed PDF. Store it. | ||
var targetPath = path.join(__dirname, '/../output/pdf-lib.pdf'); | ||
fs.writeFileSync(targetPath, signedPdf); | ||
}) | ||
}) | ||
}) | ||
} | ||
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work(); |