Add the two PDFs you want to compare, then browse through the pages to see the differences.
What this tool is for
This tool displays two PDFs side by side, page by page, and highlights the text differences between the two versions — handy for checking what changed between two versions of a contract, a quote, or a report.
Practical use cases
- Contract review: spot exactly what changed between the version you sent and the one that came back.
- Tracking revisions: compare draft and final versions of a report before publishing.
- Quote and invoice checks: confirm nothing was silently altered in a revised quote.
How to use this tool
- Add Document A (for example, the older version).
- Add Document B (the newer version).
- Click "Compare documents".
- Browse through the pages: added and removed text is highlighted below the visual preview.
Key benefits
- Visual AND text comparison in a single view.
- Works even if the two documents don't have the same number of pages.
- Nothing is sent to a server: the comparison stays private.
Practical tips
- When reviewing contracts, always compare the latest version sent against the previous one, page by page, before signing.
- A simple layout change can make many lines show up as "different" even when the meaning hasn't changed — read the context rather than just counting highlighted lines.
- Use the page navigation to step through long documents methodically rather than skimming.
Good to know
The text comparison works sentence by sentence on the content extracted from each page; it doesn't detect purely visual differences (color, images) that don't change the text itself.
Common problems
If everything appears highlighted as different, double-check you haven't swapped Document A and B, or that both files aren't scans (scanned PDFs have no real text to compare). A high number of small differences can also mean the documents were reformatted rather than substantively edited.
Frequently asked questions
Do both PDFs need the same number of pages?+
No, the tool displays as many pages as the longer document has, and clearly indicates when a page doesn't exist in the other document.
Does the comparison detect image changes?+
No, only text is compared; purely visual differences (colors, images, layout) aren't flagged automatically.