Compare two PDFs
A contract sent back “with minor tweaks”, two versions of a quote, a report a colleague reviewed, a policy updated without a changelog: spotting what actually changed between two PDFs is tedious and error-prone by eye — and missing a clause is exactly how bad surprises happen. Drop the old version and the new one and the tool confronts them page by page — modified text, added or removed pages, visual differences — then presents a report of what it found, so you read only the pages that differ instead of both files side by side. It is the right reflex before signing a “final” version, before archiving a revision, or before answering “what did they change?”. Honest limit: the comparison is textual and visual; two documents identical in substance but produced differently — re-exported from another tool, recompressed — may show cosmetic differences that are not real edits, so always open the flagged pages to confirm. Analysis runs locally on both files: neither version ever leaves your device, which matters when the pair is a contract or a confidential draft. Limits: two files, up to 100 pages each and 100 MB combined — for longer documents, extract the relevant ranges and compare section by section.
FAQ
Which difference types are detected?
Added, removed or modified text, inserted or removed pages, and visual layout differences between the two versions — all listed in a page-by-page report.
In which order should I drop the files?
Old version and new version: the report presents what changed between them, page by page.
Can two scans be compared?
A scan without a text layer compares visually, but fine text-change detection requires a text layer — run the scans through the OCR tool first.
Are both documents sent for comparison?
No: analysis of both files runs in your browser — neither the old nor the new version leaves your device.
Can I compare two PDFs of different lengths?
Yes — pages are confronted as far as the documents allow; surplus pages of the longer version are flagged in the report.
Can I compare very long documents?
The tool accepts two files up to 100 pages each and 100 MB combined. Beyond that, compare by sections: extract the relevant ranges from each version first.
Does comparison see image changes?
Yes — visual differences between pages are surfaced alongside textual ones, including modified or replaced images.
Does it produce a merged or annotated PDF?
No — the result is a difference report you read in the tool; neither source document is modified.
Why does my re-exported file show differences?
The same document produced twice — from another app or with different settings — can differ cosmetically: open the flagged pages to confirm which differences are real edits.
Can I compare a draft against a signed version?
Yes — that is a classic check: verify the signed file matches the draft you approved, and that no clause moved between the last review and the signature copy.
Does the comparison need an account or a paid plan?
No — the tool is free, with no sign-up and no per-day quota: drop both files and the comparison runs immediately in your browser.
How to proceed
- Drop the old version, then the new version of the document
- Run the comparison — pages are confronted one by one
- Review the report of flagged differences
- Open the marked pages to confirm each change is a real edit
- For documents over 100 pages, repeat section by section