PDF Utility

Compare PDF

Highlight visual differences between two PDF files. Your files stay on your device during processing.

Private local processing

Your file stays in this browser.

Keep working

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About Compare PDF

Render two PDFs page by page and highlight the pixels that changed between them.

Visual comparison renders corresponding pages and highlights changed pixels. It can reveal layout, wording and image changes, but it is not a legal document-verification service.

What the result contains

A separate result that highlight visual differences between two PDF files. The source remains unchanged in the current browser session.

Supported formats

  • PDF

How to use Compare PDF

  1. Choose the source files in a supported format (PDF) and confirm the displayed file details.
  2. Prepare the available controls for this practical goal: Spot differences between two versions of a contract
  3. Run Compare PDF and confirm that the new result matches the stated outcome before saving it.
  4. Check this known constraint before download: Comparison covers up to 30 pages per PDF to stay within safe browser memory limits If needed, revise the settings and create another version from the retained source.
Practical example

Spot differences between two versions of a contract. Use a representative source, compare the output with the original, and keep the version that meets the destination's requirements.

When to use Compare PDF

  • Spot differences between two versions of a contract
  • Check whether a revised report matches the original layout
  • Review what changed in a redesigned document

Important limitations

  • Comparison covers up to 30 pages per PDF to stay within safe browser memory limits
  • This is a visual pixel comparison, not a certified legal document-verification service

Troubleshooting Compare PDF

The result is different from what you expected

Comparison covers up to 30 pages per PDF to stay within safe browser memory limits Return to the retained source, adjust the relevant setting and create a fresh result rather than repeatedly processing the output.

Private local processing

The file is processed on this device and is not uploaded to MyFileNest. Closing or refreshing the page clears the active session.

Frequently asked questions

Practical limit: Files up to 25 MB are accepted for guests. Very large dimensions, complex documents or limited device memory can affect browser processing.