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PDFKit

How to compare pdf

  1. 1

    Upload Two PDFs

    Select or drag the two files you want to compare.

  2. 2

    Compare

    Click compare to analyze both documents side by side.

  3. 3

    Review Differences

    See added, removed, and changed content highlighted.

  4. 4

    Download

    Export the comparison report.

Processing

100% browser-based

File Privacy

Never leaves your device

Price

Free forever

Requires

Modern browser (Chrome, Firefox, Safari, Edge)

Supported Formats

PDF

Frequently Asked Questions

Is Compare PDF free to use?+

Yes, Compare PDF is completely free. There are no pricing tiers, no hidden costs, and no usage limits.

Are my PDF files uploaded to a server when using Compare PDF?+

No. Compare PDF processes everything entirely in your browser. Your files never leave your device.

What file formats does Compare PDF support?+

Compare PDF supports standard PDF files. For image-based tools, JPG, PNG, and WEBP are supported.