PDFKit - A JavaScript PDF generation library for Node and the browser.

•    Javascript

---

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.

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asciidoctor-pdf - :page_with_curl: Asciidoctor PDF: A native PDF converter for AsciiDoc based on Asciidoctor and Prawn, written entirely in Ruby

•    Ruby

---

Prawn is a nimble PDF writer for Ruby. More important, it’s a hackable platform that offers both high level APIs for the most common needs and low level APIs for bending the document model to accommodate special circumstances. With Prawn, you can write text, draw lines and shapes and place images anywhere on the page and add as much color as you like. In addition, it brings a fluent API and aggressive code re-use to the printable document space.

asciidoc asciidoctor pdf pdf-generation prawn

one-file-pdf - A minimalist Go PDF writer in 1982 lines

•    Go

---

The result is a single .go file with less than 1999 lines of code, about 400 of which are color and glyph-size constants, and ~350 are comments. All types in are prefixed with PDF for public, and 'pdf' for private types. The only type you need to use is PDF, while PDFColorNames are left public for reference.

pdf-generation pdf minimalism printing graphics

canvas - Cairo in Go: vector to raster, SVG, PDF, EPS, WASM, OpenGL, Gio, etc.

•    Go

---

Canvas is a common vector drawing target that can output SVG, PDF, EPS, raster images (PNG, JPG, GIF, ...), HTML Canvas through WASM, OpenGL, and Gio. It has a wide range of path manipulation functionality such as flattening, stroking and dashing implemented. Additionally, it has a text formatter and embeds and subsets fonts (TTF, OTF, WOFF, WOFF2, or EOT) or converts them to outlines. It can be considered a Cairo or node-canvas alternative in Go. See the example below in Figure 1 for an overview of the functionality. Figure 1: top-left you can see text being fitted into a box, justified using Donald Knuth's linea breaking algorithm to stretch the spaces between words to fill the whole width. You can observe a variety of styles and text decorations applied, as well as support for LTR/RTL mixing and complex scripts. In the bottom-right the word "stroke" is being stroked and drawn as a path. Top-right we see a LaTeX formula that has been converted to a path. Left of that we see an ellipse showcasing precise dashing, notably the length of e.g. the short dash is equal wherever it is on the curve. Note that the dashes themselves are elliptical arcs as well (thus exactly precise even if magnified greatly). To the right we see a closed polygon of four points being smoothed by cubic Béziers that are smooth along the whole path, and the blue line on the left shows a smoothed open path. On the bottom you can see a rotated rasterized image. The result is equivalent for all renderers (PNG, PDF, SVG, etc.).

svg pdf opengl canvas html-canvas cairo path rasterizer vector-graphics eps

draw2d - 2D rendering for different output (raster, pdf, svg)

•    Go

---

Package draw2d is a pure go 2D vector graphics library with support for multiple output devices such as images (draw2d), pdf documents (draw2dpdf) and opengl (draw2dgl), which can also be used on the google app engine. It can be used as a pure go Cairo alternative. draw2d is released under the BSD license. See the documentation for more details. Click on an image above to get the pdf, generated with exactly the same draw2d code. The first image is the output of samples/geometry. The second image is the result of samples/postcript, which demonstrates that draw2d can draw postscript files into images or pdf documents with the ps package.

2d graphics postscript freetype

Cairo Graphics

•    C

---

Cairo is a 2D graphics library with support for multiple output devices. Currently supported output targets include the X Window System, Quartz, Win32, image buffers, PostScript, PDF, and SVG file output. Experimental backends include OpenGL (through glitz), XCB, BeOS, OS/2, and DirectFB.

graphics-library image-processing vector-graphics

PDF Chain - Graphical user interface for the PDF Toolkit (PDFtk)

•    C++

---

PDF Chain is a graphical user interface for the PDF Toolkit (pdftk). The GUI supports all common features of the command line tool in a comfortable way. PDF Chain generates a command for the PDF Toolkit from the GUI settings and executes it on the system. Therefore the PDF Toolkit must be already installed on the system.

pdf pdf-toolkit pdf-tools

MuPDF - A Lightweight PDF, XPS and E-book viewer

•    C

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MuPDF is a lightweight PDF, XPS, and E-book viewer. It renders text with metrics and spacing accurate to within fractions of a pixel for the highest fidelity in reproducing the look of a printed page on screen. It supports PDF 1.7 with transparency, encryption, hyperlinks, annotations, searching and more. The viewer is small, fast, yet complete. It supports many document formats, such as PDF, XPS, OpenXPS, CBZ, EPUB, and FictionBook 2. You can annotate PDF documents and fill out forms with the mobile viewers (this feature is coming soon to the desktop viewer as well).

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Ghostscript - Document Rendering and Conversion

•    C

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Ghostscript is a rendering and conversion engine for page description languages, including Postscript and PDF. It has ability to convert PostScript language files to many raster formats, view them on displays, and print them on printers that don't have PostScript language capability built in.

document-conversion pdf-text-extraction text-extraction graphics pdf postscript printing

PDFBox - Java PDF library

•    Java

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Apache PDFBox is an open source Java PDF library for working with PDF documents. This library allows creation of new PDF documents, manipulation of existing documents and the ability to extract content from documents. It provides support for adding bookmarks, fonts, text extraction, Encryption, PDF printing and lot more.

pdf text-extraction pdf-library pdf-library-dotnet pdf-library-java

OpenOffice.org PDF Importer

•    Java

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The aim of this project is to develop a Portable Document Format (PDF) importer for OpenOffice.org Writer based on XPDF. This project was inspired by the PDF importer within KWord.

PDF2Mail PDF Writer

•    

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PDF2Mail is a PDF-Writer Windows printer that creates PDF files from your current print job, opens up a new eMail (in Outlook, Outlook Express or Thunderbird) and attaches the PDF to this eMail.

iText - Java PDF library

•    Java

---

iText is one of the popular and widely used PDF library. It is used to generate PDF documents dynamically. Mostly web developers will love it to generate PDF documents and reports based on data from an XML file or a database and serves it to the browser. It has support of adding bookmarks, watermarks, Encryption, Form filling and lot more.

pdf text-extraction pdf-library pdf-library-dotnet pdf-library-java

PDF Library - PDF manipulation in .NET

•    VBNET

---

A library for PDF manipulation implementing Adobe PDF standard version 1.7. This library allows to read PDF files and apply changes to them, it is written in .NET 2.0 using Visual Studio 2005. Writing and Parsing PDF is supported.

text-extraction pdf pdf-library pdf-library-dotnet

jPod - PDF manipulating and rendering framework

•    Java

---

jPod is a PDF manipulating and rendering framework. It provides functionality to read, verify the document against the PDF specification. It also provides content stream and rendering framework. It could able to create new document and do incremental updates.

pdf text-extraction pdf-library pdf-library-java

unipdf - Golang PDF library for creating and processing PDF files (pure go)

•    Go

---

UniDoc's UniPDF (formerly unidoc) is a PDF library for Go (golang) with capabilities for creating and reading, processing PDF files. The library is written and supported by FoxyUtils.com, where the library is used to power many of its services. Multiple examples are provided in our example repository https://github.com/unidoc/unidoc-examples as well as documented examples on our website.

pdf pdf-library pdf-generation pdf-document-processor text-extraction pdf-manipulation

pdf-bot - 🤖 A Node queue API for generating PDFs using headless Chrome

•    Javascript

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Easily create a microservice for generating PDFs using headless Chrome. pdf-bot is installed on a server and will receive URLs to turn into PDFs through its API or CLI. pdf-bot will manage a queue of PDF jobs. Once a PDF job has run it will notify you using a webhook so you can fetch the API. pdf-bot supports storing PDFs on S3 out of the box. Failed PDF generations and Webhook pings will be retried after a configurable decaying schedule.

html pdf headless headless-chrome pdf-generator nodejs node-js pdf-generation chromium headless-chromium google-chrome

PHPWord - A pure PHP library for reading and writing word processing documents

•    PHP

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PHPWord is a library written in pure PHP that provides a set of classes to write to and read from different document file formats. The current version of PHPWord supports Microsoft Office Open XML (OOXML or OpenXML), OASIS Open Document Format for Office Applications (OpenDocument or ODF), Rich Text Format (RTF), HTML, and PDF. PHPWord is an open source project licensed under the terms of LGPL version 3. PHPWord is aimed to be a high quality software product by incorporating continuous integration and unit testing. You can learn more about PHPWord by reading the Developers' Documentation.

libreoffice-writer msword doc docx html odt pdf rtf

html-pdf-chrome - HTML to PDF converter via Chrome/Chromium

•    TypeScript

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HTML to PDF converter via Chrome/Chromium. Note: It is strongly recommended that you keep Chrome running side-by-side with Node.js. There is significant overhead starting up Chrome for each PDF generation which can be easily avoided.

chrome chromium html html-pdf-chrome pdf pdf-generation typescript headless-chrome headless-chromium headless-browsers headless nodejs node-js google google-chrome pdf-generator html-pdf mac

borb - Library for reading, creating and manipulating PDF files in Python

•    Python

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borb is a pure python library to read, write and manipulate PDF documents. It represents a PDF document as a JSON-like datastructure of nested lists, dictionaries and primitives (numbers, string, booleans, etc).

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