PDF Duplicate Page Finder

Use perceptual fingerprints to find duplicate or highly similar page candidates.

Local processingOriginals preservedDirect export

Tool workspace

Processing stays in this tab
Page APage BSimilarityAssessment

Uses low-resolution perceptual fingerprints to find candidates. Cropping, shifts, and scan noise can create false matches; review before deletion.

How to use

  1. Add a PDF and choose a similarity threshold.
  2. Build perceptual fingerprints and compare candidate pairs.
  3. Review pages manually before deleting anything.

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

Up to 200 pages are analyzed. Cropping, shifts, rotation, scan noise, and visually similar blank forms can create false negatives or positives.

FAQ

Does it delete duplicate pages automatically?

No. It creates candidates only; use the page-deletion tool after review.

Why can similar pages be flagged?

Low-resolution perceptual fingerprints can rate visually similar forms or scans highly.