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Free and open-source PDF editor for Windows with a built-in PDF 2.0 engine. View, annotate, OCR, merge, split, crop, rotate, compare, edit text, draw, sign, fill forms, print, flatten, and open password-protected PDFs without a subscription.
Open-source Android PDF and document toolkit with PDF tools, Office viewing, XLSX editing, scanning, and image editing. Built with Kotlin and Jetpack Compose.
A soulful, production-grade PDF reader for Android featuring a "Warm Paper" aesthetic, gesture-driven interface, and a high-performance modular architecture. Built with Kotlin 2.0 and Jetpack Compose
A Fast, Cross-Platform Pdf Reader
An open-source read-along document reader server with high-quality TTS options, synchronized highlighting, and audiobook export for EPUB, PDF, DOCX, TXT, and MD.
PDF Rendering and Viewing API in Java
Inkita is a lightweight Android reader for Kavita: fast browsing, offline downloads, and reliable progress sync. It caches metadata, pages, and thumbnails so you can read on the go and resume exactly where you left off.
Native, virtualized PDF viewer for React Native, built on Nitro Views
PHP library to read and extract text, markdown & images from PDFs - Fast & Low memory - Built from scratch