What types of differences can be detected?

Our tool detects text changes, additions, deletions, formatting differences, and content modifications between two PDF documents.

Can I compare scanned PDF documents?

Yes! Our tool can compare both text-based and scanned PDF documents by analyzing their visual content and text layers.

Can I compare PDFs with different page counts?

Yes! Our tool handles PDFs with different page counts and clearly marks added or removed pages as differences.

Is my PDF uploaded to any server?

No! Everything runs 100% in your browser. Your PDF files never leave your device — complete privacy guaranteed.

Compare PDF - Find Differences Between PDF Files Free

Original PDF

Upload the original / older version

Modified PDF

Upload the modified / newer version

Comparison Options

Compare Mode

Text Visual Both

Options

Ignore Case Ignore Extra Spaces Ignore Numbers

Comparison Summary

0 Added

0 Removed

0 Changed

0% Same

Original

Modified

Differences Found

How to Compare PDFs

Simple 3-step process

Upload Both PDFs

Select your original and modified PDF files.

Compare

Click Compare to detect all text differences.

Review Changes

View highlighted differences in side-by-side, overlay, or slider mode.

Frequently Asked Questions

What types of differences are detected?

The tool detects added text (green), removed text (red), and changed text (yellow) at the word level across all pages.

Are my PDFs uploaded to a server?

No! Everything runs in your browser. Your files never leave your device.

Can I compare scanned PDFs?

Text comparison works only with text-based PDFs. The Visual mode shows visual differences for scanned PDFs using pixel comparison.

What view modes are available?

Side by Side: Both pages shown simultaneously. Overlay: One on top of the other with opacity. Slider: Drag to reveal A or B with a divider.

Compare PDF