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Compare PDF

Compare two PDFs side by side and review changed pages.

Select PDFDrop a PDF here or click to choose

Select PDFDrop a PDF here or click to choose

Compare two PDF documents online

Open two PDF versions side by side and review changed pages. Use the comparison view to inspect differences between the documents before deciding which version to keep.

How to compare PDFs

  1. 1

    Choose both PDFs

    Select the two versions you want to compare.

  2. 2

    Run the comparison

    Wait for the comparison view and inspect the indicated differences.

  3. 3

    Review changed pages

    Check the original and updated pages side by side.

When PDF comparison helps

  • Review differences between document versions.
  • Inspect changed pages without alternating between separate PDF windows.

Local PDF comparison

The two PDFs are processed in your browser without being uploaded to the server.

PDF comparison FAQ

Does comparing merge the files?

No. Comparison helps you review two documents. Use Merge PDF to combine them.

Does a difference mean the document content changed?

Differences can also result from layout, fonts, or rendering. Inspect the indicated pages to understand the change.