Resources and materials to get yourself started with open source
An open source, general-purpose policy engine
A PDF Reader in JavaScript
The universal markup converter
OCRmyPDF adds an OCR text layer to scanned PDF files
Open source PDF editor
open source Java library for creating and editing PDF files
A simple interface for working with TeX documents
A JSON viewer plugin for Notepad++
WebDriver for Firefox
HTML, CSS and JS framework for developing responsive websites and apps
An ebook reader application supporting PDF, DjVu, EPUB, FB2, etc.
An open source RDP server
HTML5 client solution for generating PDFs
Skin changer for League of Legends (LOL)
Simple extensive tar-like archive format with indexing
A PDF processor written in Go
A static analysis tool for shell scripts
JSON that's part of C++
Make Zotero effective for us LaTeX holdouts
A JSON based anime data set with important meta data
A LaTeX class for producing presentations and slides
Open-Source Python3 tool for recognizing layouts, tables, and math
the MiKTeX source code
Core part of Jackson that defines Streaming API