# Compare two PDFs — per-page text diff, no upload

> Compare two PDFs with a per-page text diff to spot what changed between versions, in your browser. Nothing is uploaded.

Load two PDFs and get a per-page text diff that shows what was added or removed between versions. The comparison runs in your browser, so neither file is uploaded.

When two versions of a contract or report land in your inbox, a text diff is the fastest way to see what actually changed. This tool extracts each page's text and compares them, so edited clauses and inserted lines stand out.

It works on PDFs with a real text layer; run scans through OCR first. To review changes with markup instead, use Annotate.

## How to

1. **Add both PDFs.** Choose the original (A) and the revised (B) file.
2. **Compare.** The extracted text of each page is diffed side by side.
3. **Review.** Scan the highlighted additions and deletions per page.

## FAQ

### Does it compare scanned PDFs?

It diffs extracted text, so image-only scans need OCR first to have a text layer to compare.

### Does it show visual/layout changes?

It focuses on text differences per page rather than pixel-level layout changes — ideal for catching wording edits.

### Are my documents uploaded to compare them?

No. Text is extracted and diffed locally, so both files stay on your device.


## Related tools

- [OCR](https://www.safepaper.app/docs/ocr)
- [Annotate](https://www.safepaper.app/docs/annotate)
- [Redact](https://www.safepaper.app/docs/redact)
- [Merge](https://www.safepaper.app/docs/merge)

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Canonical HTML: https://www.safepaper.app/docs/compare
Markdown: https://www.safepaper.app/docs/compare.md

There is no upload endpoint — your files are processed in this browser tab. Open your network tab and check.