Visual PDF Comparison

Compare two PDFs page by page with visual difference percentages and pixel highlights.

Local processingOriginals preservedDirect export

Tool workspace

Processing stays in this tab
Choose two PDF files.
Ready
PageStateDifferenceDetail

How to use

  1. Choose the original and changed versions.
  2. Adjust sensitivity and compare page by page.
  3. Inspect original, changed, and difference views, then download the CSV summary.

Privacy

Input and files are processed in the current browser tab. Mingmist does not receive the content unless you independently share the result elsewhere.

Limitations

Visual comparison evaluates rendered output. Font substitution, antialiasing, scan noise, and small shifts may be marked; up to 100 pages are compared at once.

FAQ

What does the difference percentage mean?

It is the share of rendered pixels above the threshold, not a percentage of changed text.

Can PDFs with different page sizes be compared?

Yes. Pages are placed on equal white canvases; size differences usually create a larger result.