SumatraPDF reader

Sioyek is a PDF viewer with a focus on textbooks and research papers

Emacs support library for PDF files.

Powerful image viewer with minimal UI

A performant PDF rendering library for single pages.

AhmerPdfium is a fast, customizable Android PDF rendering library with support for scroll handles, links, annotations, support 16KB page sizes, and efficient large-page performance

view pdf on X11 and the Linux framebuffer; resize pdf; convert pdf to text, html, TeX, groff

A light-weight PDF viewer for Windows.

Portable viewer for VB6 to show PDF/WPS/EPUB documents.

This is a sandboxed PDF viewer for Linux. It transforms PDF into SVG (serialized in JSON).

AndroidPDFPreview is a lightweight and easy-to-use SDK that enables you to display and interact with PDF documents in your Android apps

Jumpdf is a keyboard-focused PDF viewer for documents where one needs to jump between different sections of the document frequently.

A small framebuffer pdf, djvu, epub, xps, and cbz viewer

Measures the nominal length and angle on the image/PDF

Pdfium library implementation in PHP using FFI

Fork of Vudroid: libvudroid.so source and pre-compiled binaries for modern Android NDK, enabling PDF preview in Android projects

This is an Unreal project 5.3 that uses PDFium binaries to read PDF and show it on widget in runtime.

Contains a WPF (support .Net Framework 4.8 & .Net Core 3.1 and later versions) control for displaying PDF files and a sample PDF viewer, that uses this control.

A reimagined C implementation of the "lpdf" PDF viewer, as a continuation of the project.

#FanFork (I use w/Xfce4): Accessibility focused document viewer for MATE