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PDF Compare

Compare contracts, policies, invoices, and draft PDFs with side-by-side text diff, visual overlay, changed-page navigation, and a downloadable review report. Everything runs locally in your browser.

↔ Side-by-Side ✎ Text + Visual Diff 📋 Review Report
Upload PDFs
Original PDF
📄
Drop original PDF here
or click to browse
Modified PDF
📄
Drop modified PDF here
or click to browse
Comparison Settings
Comparison Results
0 additions 0 deletions 0 / 0 pages changed 0 words changed 100% similar
Upload two PDFs, then run a comparison to see page-level review notes.
Page 1 / 1
Original
Modified
How to Use
1. Upload your original PDF on the left and the modified version on the right.

2. Tune word, sentence, or line comparison and choose whether to ignore whitespace or case changes.

3. Compare to get a changed-page map, similarity score, additions, deletions, and side-by-side review panes.

4. Verify layout with visual diff, then copy the summary or download a review report for your team.
Tips
  • ✓ Works best with text-based PDFs; use visual diff for scanned pages or layout-only changes
  • ✓ Visual diff reports a page-level pixel-change percentage
  • ✓ Changed-page navigation helps review long contracts and policy drafts quickly
  • ✓ Export the report before sending edits to a lawyer, approver, client, or procurement team
  • ✓ 100% client-side — nothing is uploaded

Compare PDFs Online for Free

The AfroTools PDF Compare tool lets you diff two PDF documents side-by-side directly in your browser. Whether you need to review contract changes, compare document drafts, or verify edits, this tool highlights additions, deletions, changed pages, similarity, and visual layout changes.

Everything runs locally in your browser. Your PDF files are never uploaded to any server, ensuring complete privacy and security for sensitive documents.

Frequently Asked Questions

How does the text diff work?
The tool extracts text from each page of both PDFs, compares it at word, sentence, or line level, and highlights additions and deletions in side-by-side review panes.
What does the visual diff show?
Visual diff renders both PDF pages as images, highlights changed pixels, reports a visual-change percentage, and supports slider or side-by-side review modes.
Is my PDF uploaded to a server?
No. All processing happens entirely in your browser using JavaScript. Your PDFs never leave your device.
Can I export the comparison?
Yes. You can copy the summary or download a text report with document names, page counts, similarity, and per-page changes.