Compare PDF

Compare two PDF documents and find differences. See changes side-by-side or highlighted in an overlay view. Perfect for reviewing document revisions. All processing happens locally.

Original PDF

Drop first file or click to browse

Modified PDF

Drop second file or click to browse

💡 How it works: Upload two PDF files to compare. The tool will analyze each page and highlight any visual differences between them.

Analyzing documents...

Comparison Results

Page 1 of 1 Identical
100%
Original
Modified
Removed (in original only)
Added (in modified only)
Changed

Features

Side by Side

View both documents next to each other for easy comparison.

Visual Diff

See exactly what changed with color-coded highlighting.

100% Private

All comparison happens in your browser. Files never leave your device.

Multi-Page Support

Compare documents with any number of pages.

How to Compare Two PDFs

Find every difference between two PDF documents

1

Upload Both PDFs

Upload the original and modified versions. Both files stay on your device — nothing sent to any server.

2

Review Differences

The tool highlights changes in color: red for removed content, green for additions, yellow for modifications. Browse page by page.

3

Export Results

Download a comparison report with all differences highlighted. Share with colleagues or keep for your records.

Why Use Our PDF Comparison Tool

Complete Privacy

Both PDFs are processed locally in your browser. No server upload — contracts and confidential docs stay on your device.

Visual Diff

Color-coded differences make changes obvious at a glance. Red for removals, green for additions, yellow for modifications.

Instant Analysis

No waiting for server processing. Comparison runs locally — even multi-page documents are analyzed in seconds.

Works Everywhere

No software to install. Compare PDFs on Windows, Mac, Linux, Chromebook, or mobile using any modern browser.

100% Free

No premium plans, no per-file fees, no watermarks. Compare unlimited PDFs at no cost.

No Registration

No account, no email. Open the page, compare your PDFs, see the results.

Frequently Asked Questions

Upload both PDFs and the tool highlights differences between them. Added, removed, and changed content is color-coded for easy identification.
The tool detects text changes, additions, deletions, and visual differences between pages. It highlights where the two documents differ.
No. All comparison processing happens locally in your browser. Your PDFs never leave your device — complete privacy guaranteed.
Yes. The tool compares pages that exist in both documents. Extra pages in either document are flagged as additions or deletions.
Red shows content only in the original (removed), green shows content only in the modified version (added), and yellow indicates areas that changed.
Yes. The tool performs visual comparison, detecting differences in both text and visual elements like images, charts, and layout changes.
No. The tool runs entirely in your web browser. No downloads, no plugins, no Adobe Acrobat needed.
No. Compare PDFs of any length. Processing runs locally, so very large documents may take a moment longer.

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