@foliojs-fork/pdfkit
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A JavaScript PDF generation library for Node and the browser.
PDFKit is a PDF document generation library for Node and the browser that makes creating complex, multi-page, printable documents easy. The API embraces chainability, and includes both low level functions as well as abstractions for higher level functionality. The PDFKit API is designed to be simple, so generating complex documents is often as simple as a few function calls.
Check out some of the documentation and examples to see for yourself! You can also read the guide as a self-generated PDF with example output displayed inline. If you'd like to see how it was generated, check out the README in the docs folder.
You can also try out an interactive in-browser demo of PDFKit here.
Because PDFKit require up-to-date these dependencies:
Installation uses the npm package manager. Just type the following command after installing npm.
npm install @foliojs-fork/pdfkit
const PDFDocument = require('pdfkit');
const fs = require('fs');
// Create a document
const doc = new PDFDocument();
// Pipe its output somewhere, like to a file or HTTP response
// See below for browser usage
doc.pipe(fs.createWriteStream('output.pdf'));
// Embed a font, set the font size, and render some text
doc
.font('fonts/PalatinoBold.ttf')
.fontSize(25)
.text('Some text with an embedded font!', 100, 100);
// Add an image, constrain it to a given size, and center it vertically and horizontally
doc.image('path/to/image.png', {
fit: [250, 300],
align: 'center',
valign: 'center'
});
// Add another page
doc
.addPage()
.fontSize(25)
.text('Here is some vector graphics...', 100, 100);
// Draw a triangle
doc
.save()
.moveTo(100, 150)
.lineTo(100, 250)
.lineTo(200, 250)
.fill('#FF3300');
// Apply some transforms and render an SVG path with the 'even-odd' fill rule
doc
.scale(0.6)
.translate(470, -380)
.path('M 250,75 L 323,301 131,161 369,161 177,301 z')
.fill('red', 'even-odd')
.restore();
// Add some text with annotations
doc
.addPage()
.fillColor('blue')
.text('Here is a link!', 100, 100)
.underline(100, 100, 160, 27, { color: '#0000FF' })
.link(100, 100, 160, 27, 'http://google.com/');
// Finalize PDF file
doc.end();
The PDF output from this example (with a few additions) shows the power of PDFKit — producing
complex documents with a very small amount of code. For more, see the demo folder and the
PDFKit programming guide.
There are three ways to use PDFKit in the browser:
pdfkit.standalone.js file in the releases or in the package js folder.In addition to PDFKit, you'll need somewhere to stream the output to. HTML5 has a Blob object which can be used to store binary data, and get URLs to this data in order to display PDF output inside an iframe, or upload to a server, etc. In order to get a Blob from the output of PDFKit, you can use the blob-stream module.
The following example uses Browserify or webpack to load PDFKit and blob-stream. See here and here for examples
of prebuilt version usage.
// require dependencies
const PDFDocument = require('pdfkit');
const blobStream = require('blob-stream');
// create a document the same way as above
const doc = new PDFDocument();
// pipe the document to a blob
const stream = doc.pipe(blobStream());
// add your content to the document here, as usual
// get a blob when you are done
doc.end();
stream.on('finish', function() {
// get a blob you can do whatever you like with
const blob = stream.toBlob('application/pdf');
// or get a blob URL for display in the browser
const url = stream.toBlobURL('application/pdf');
iframe.src = url;
});
You can see an interactive in-browser demo of PDFKit here.
Note that in order to Browserify a project using PDFKit, you need to install the brfs module with npm,
which is used to load built-in font data into the package. It is listed as a devDependency in
PDFKit's package.json, so it isn't installed by default for Node users.
If you forget to install it, Browserify will print an error message.
For complete API documentation and more examples, see the PDFKit website.
PDFKit is available under the MIT license.
[v0.13.0] - 2021-10-24
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A PDF generation library for Node.js
The npm package @foliojs-fork/pdfkit receives a total of 470,262 weekly downloads. As such, @foliojs-fork/pdfkit popularity was classified as popular.
We found that @foliojs-fork/pdfkit demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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