Foxit Reader is a lightweight, fast PDF Reader.

PDFsam Basic extremely useful tool for splitting and merging PDFs in a configuration that suits you.

Adobe Acrobat Reader DC is the industry standard for viewing, printing, signing and commenting on PDF documents.

iBooks is an e-book application by Apple Inc. for its iOS and macOS operating systems and devices.

QOwnNotes is a free open source (GPL) plain-text notepad with markdown support and todo list manager for GNU/Linux, MacOS and Windows, that (optionally) works…

Briss is a simple cross-platform application for cropping PDF files.

jPDF Tweak is a Java Swing application that can combine, split, rotate, reorder, watermark, encrypt, sign, and otherwise tweak PDF files.

Adobe Acrobat Reader DC is the industry standard for viewing, printing, signing and commenting on PDF documents.

PDF.js. A general-purpose, web standards-based platform for parsing and rendering PDFs.

Preview is the image viewer and PDF viewer of the macOS operating system.

Docear is an academic literature suite. Docear bundles several applications for academics. As of now, these applications are BibTeX based reference management…

Notebooks is a note taking and task management app.

colwiz (collective wizdom) is free web, desktop and mobile based research management software.

TeXShop is a free LaTeX and TeX editor and previewer.