Compare two versions of a contract
Upload the old and the new version of the contract above. The comparison highlights every change: added text in green, removed text in red. You see at a glance whether anything beyond the agreed points was changed.
Original (old)
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or drag and dropPDF
Changed (new)
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or drag and dropPDF
Please choose two PDF files.
Your files never leave your device — everything runs locally in your browser.
How it works
- 1
Upload the old version
The version you last reviewed.
- 2
Upload the new version
The revised draft.
- 3
Compare
Differences are highlighted page by page.
- 4
Review changes
Jump from change to change.
Why a comparison matters
In negotiations, contracts go back and forth several times. Without tracked changes, small edits — a different deadline, a deleted clause, a new date — are easy to miss. An automatic text comparison catches them reliably.
What to watch closely
- Deadlines, notice periods and terms.
- Amounts, prices and payment terms.
- Liability and warranty clauses.
- Deleted sentences — they’re the hardest to spot by reading.
Both files are compared only in your browser. The comparison is no substitute for legal review of important contracts.
Tips
- Scanned PDFs have no text — use overlay mode or run OCR first.
- Both files stay on your device, so confidential contracts can be compared safely.
- The more similar the structure of both versions, the more precise the result.
Frequently asked questions
Does it work with scanned contracts?
The text comparison needs text — run OCR first or use the visual overlay mode.
What if the layout changed?
The text comparison works on content, so line breaks barely matter. Layout changes show up in overlay mode.
Can I compare Word files?
Convert them to PDF first with Word to PDF.