About this tool
How Compare PDF works
Compare two PDF documents side-by-side to spot differences in text and layout. Useful for proofreading and version control.
Drop your PDF into the workspace above and the tool will produce the result directly in your browser. Processing runs locally - your file never leaves your device, no account is required, and there are no upload limits.
- • Private — processing happens entirely in your browser.
- • Free — no signup, no watermarks, no daily limits.
- • Fast — no upload time, no server queues.