Open Source Software Library

Jupyter Book is an open-source tool for building publication-quality books and documents from computational material. Jupyter Book allows users to write their content in Markdown files or Jupyter notebooks, include computational elements (e.g., code cells) in either type, include rich syntax such as citations, cross-references, and numbered equations, and using a simple command, run the embedded code cells, cache the outputs and convert this content into: a web-based interactive book and a publication-quality PDF.

Open-source native PDF reader for Windows.

Open-source software project maintained in a public source repository.

A local-first editor built for you and your agents. Edit and preview Markdown, HTML, CSS, CSV, JSON, DOCX, XLSX, PDF, media, and 3D files. Work with local folders; files stay local unless you choose Cloud. Built-in Git, terminal, and agents including Codex, Claude Code, Cursor, and OpenCode. Optional Puppyone Cloud for hosting, backup, and always-on MCP or CLI access. Apache License 2.0. Install: npm install --global puppyone (macOS Desktop).

Remind is a sophisticated calendar and alarm program. It includes the following features: - A sophisticated scripting language and intelligent handling of exceptions and holidays. - Plain-text, PDF, PostScript and HTML output. - Timed reminders and pop-up alarms. - A friendly graphical front-end for people who don't want to learn the scripting language. - Facilities for both the Gregorian and Hebrew calendars. - Support for 12 different languages.

Statistics Canada tool using the SLICE algorithm to extract financial-statement and tabular information from text-based PDF pages. It is useful for repeatable table extraction where analysts need transparent parsing logic.

A desktop office suite for editing documents, spreadsheets, presentations, forms, and PDF files.

Municipal PDF utility that makes redactions and form entries permanent by flattening documents.

Self-hosted web application providing a wide range of PDF manipulation and conversion tools.

Command-line utility that adds searchable OCR text layers to scanned PDF files.

Document scanning application with OCR, PDF creation, profiles, and scanner support.

KDE document scanning application for creating multi-page PDF and image documents.