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Compare PDF

Compare two PDFs using text and visual page analysis, then download difference images and a JSON report.

◉ Free⚡ Server Processing🔒 Temporary Files Deleted

🆚 Compare Two PDFs

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The ZIP contains a JSON page-by-page report and PNG difference images for visually changed pages.

📖 How to use

  • Select the PDF file and available options.
  • Start processing and keep this tab open.
  • The server performs the requested PDF operation.
  • Download the result and verify it before deleting your original.

⚡ Phase 5 engine

  • Uses Tool Digital Hub's custom API domain with Render fallback.
  • Current free server limit is 15 MB and 40 PDF pages.
  • Temporary job files are removed after the response is delivered.
  • No feature paywall is added to these PDF operations.

💡 Pro Tips

  • Keep a copy of your original PDF.
  • Password-protected PDFs need the correct source password.
  • The first request can take longer if the free server was sleeping.
  • Use PDF Studio to move quickly between related operations.

❓ Frequently Asked Questions

What does the comparison ZIP contain?

A JSON report shows page counts, text equality and visual equality. Changed pages also get difference PNG files.