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Compare Two PDFs Online for Free
See what changed, page by page — no upload, no signup, up to 100 MB each.
Your files never leave your device
Original
Drag & drop or browse
Modified
Drag & drop or browse
How to Compare Two PDFs
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Upload both PDFs Drag & drop or browse your original and modified files.
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Confirm No settings needed — we compare text automatically.
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Review See exactly which pages changed, right in your browser.
Spot every change, fast
- Private by designBoth PDFs are processed on your device and never uploaded.
- InstantNo upload queue — your browser does the work locally.
- Free, no signupNo account, no credit card, no trial that expires.
- Page-by-page breakdownSee exactly which pages changed and roughly how much.
- Downloadable reportSave a plain-text summary of every difference found.
Frequently Asked Questions
Is it free?
Yes. No signup required.
Is my file safe?
Yes — both PDFs are processed entirely in your browser and never uploaded.
What exactly does this compare?
Each page's text content, word by word. It's built for catching content changes — edited paragraphs, added or removed sentences, rewritten sections — not visual layout.
Will it catch changes to images, colors, or layout?
No — this tool compares text only. Two pages with identical text but a moved image or a different color scheme will show as identical.
What happens if the two PDFs have different numbers of pages?
Extra pages are reported as "only in Original" or "only in Modified" rather than compared against the wrong page.
Are there settings to configure?
No — comparison is automatic. Just upload both files and confirm.
Max file size?
100 MB each.