Compare two PDFs
Line-by-line text diff between an original and a revised document.
Original document
or click to browse — one file at a time
Revised document
or click to browse — one file at a time
How to compare two PDFs in your browser
Spot exactly what changed between two versions of a contract, policy or draft. Text from both files is aligned and every insertion and deletion is colour-coded side by side.
- 1Upload the original PDF.
- 2Upload the revised PDF.
- 3Review the highlighted differences.
- 4Act on the changes in the editor if needed.
What this compare two PDFs tool does
Word-level differences
Additions and removals are highlighted inline, not just flagged per page.
Side-by-side layout
Both documents scroll together so context is never lost.
Version control for documents
Ideal for reviewing contract redlines and revised reports.
Why people use it
- Free with no account, no email and no watermark
- Runs in the browser — documents stay on your device
- Works on Windows, macOS, Linux, Android and iOS
- Also great for PDF diff online and compare PDF documents free
Frequently asked questions
Does it compare images and layout?
- The comparison focuses on the text layer, which catches the substantive changes in most documents.
Can I compare scanned PDFs?
- Run OCR on both files first so they each have a text layer.
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