Open Source Android PDF Editors

Tools : open office, PDF viewer...

Andorid PDF Viewer is a viewer for PDF-Files on ANDROID mobiles. The implementation will be a port of the pdf-renderer which is published by SUN under the LGPL: https://pdf-renderer.dev.java.net/. The first version will be very slow, so do not hurry...

A simple, free, unlimited, secure web-based tool that converts Microsoft Word documents (.docx) into Markdown (.md/.txt) and HTML files. Perfect for developers, writers, and anyone who needs to transform .docx MS Office Word documents into web-friendly or AI context friendly formats. Unlike those other jerks on the web that charge many dollars per month for this, I made it free, unlimited and open source. This is a better version of 'convert docx to txt' since .md files can be opened in notepad++ just the same AND they preserve formatting too! Meanwhile HTML files will even embed images allowing you to view them just like they were in the original document.

ZapConvert is an accountless, privacy-focused file conversion and PDF utility suite supporting 52 formats across documents, media, images, spreadsheets, and archives. Unlike typical converters that upload files to external servers, ZapConvert processes 38 formats directly inside your browser using WebAssembly. Files never leave your local device for client-side conversions. The remaining 14 tools (Office documents, PDF to Word/Excel, video compression, and FFmpeg media) stream statelessly through RAM-only scratch space and are deleted immediately upon completion with zero disk writes. Key Features: - 38 in-browser WASM tools for private, zero-upload processing - Multi-file batch conversion with single-click bundled ZIP downloads - Image, audio, video, and PDF compression with before/after comparison sliders - OCR text extraction and searchable PDF creation - Self-hostable Docker stack for TrueNAS, Unraid, CasaOS, and homelabs