A private, local-first desktop PDF tool for reading, annotation, intelligent search, document diff, and workspace restore. No uploads. No accounts. No cloud.
OpenReader turns your computer into a focused document workbench. Open a PDF and everything you need—reading, annotation, search, comparison—is right there. No tabs, no toolbars, no distraction.
Every file stays on your machine. There are no cloud syncs, no telemetry, no accounts. OpenReader is built for people who treat their documents as private by default and want tools that do the same.
Built for the daily workflow of reading, marking up, and managing PDFs—without the overhead of a browser or subscription.
Highlight, underline, strikethrough, and add notes directly on the page. Copy with formatting preserved. Every annotation is local and yours.
Full-text search across open documents with instant results. Find what you need without leaving your reading flow.
Compare two PDFs side by side and see exactly what changed—word by word, page by page. Ideal for reviewing drafts and contract revisions.
Close OpenReader and come back exactly where you left off. Open documents, scroll positions, and annotations are restored automatically.
No cloud, no telemetry, no accounts. The file never leaves your machine. OpenReader works entirely offline with zero network dependencies.
Native on Windows with the Microsoft Store. Experimental on macOS (Apple Silicon & Intel). Built with Python & PyQt.
Download from the Microsoft Store or build from source on GitHub. No sign-up, no subscription—just a tool that respects your privacy.