Compare PDF
Compare two PDFs and see the differences
Drop your files here
or click to browse
Compare PDF — Free Online Tool
Compare two PDF files for differences. This tool runs entirely in your browser — your files are never uploaded to any server. No sign-up required, no watermarks, no file size limits. Works on Windows, Mac, Linux, iPhone, and Android.
How to use Compare PDF
- Open this page in any modern browser (Chrome, Firefox, Safari, Edge)
- Drop your file(s) into the upload area or click to browse
- Adjust any settings if available
- Click the process button and download your result
Why choose Compare PDF?
- ✓100% private — files are processed in your browser, never uploaded
- ✓Completely free — no sign-up, no watermarks, no limits
- ✓Instant processing — no server queues, no waiting
- ✓Works everywhere — Windows, Mac, Linux, iOS, Android
Compare PDF — frequently asked questions
What types of differences are detected?+
Text changes, added or removed content, image differences, and formatting changes are all highlighted.
Can I compare scanned PDFs?+
Scanned PDFs can be compared, but accuracy depends on OCR quality. Text-based PDFs produce more reliable comparisons.
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