The new version.
The whole picture.
A changed fee. A later deadline. An extra page. Compare two PDFs and bring the details into focus before you send the next version.
Explore FolioDiff ↓macOS 14+ · Apple Silicon & Intel
A small edit can matter.
$18,000
Example content included in the app. Try the built-in example
without importing a document.
Choose. Compare. Review.
Bring the PDFs.
Choose the earlier and revised file, or drop two PDFs into the window. Your originals stay untouched.
See the words and the page.
Read added and removed text. Inspect visual outlines or blend both pages to spot layout and image changes.
Keep a clear record.
Mark pages as reviewed, add notes, and export a PDF report with marked pages and text changes. Export CSV for a text change list.
More than a quick glance.
- Page alignmentAutomatic matching helps handle inserted or removed pages. Switch to page-number matching when needed.
- Scanned-page recognitionOn-device OCR reads pages with little or no embedded text. Always verify recognized text against the page.
- A queue you can work throughFilter changed pages, search document text and notes, and track which pages you have reviewed.
- A self-contained reportShare the original and revised page images, visual outlines, text changes, and review notes in an ordinary PDF.
Before you compare.
Which PDFs can I use?
Unlocked PDFs up to 300 pages and 150 MB per file. Password-locked files must first be unlocked as a copy in your PDF reader. 15 interface languages are included: English, German, French, Spanish, Italian, Portuguese, Brazilian Portuguese, Dutch, Polish, Swedish, Danish, Norwegian Bokmål, Finnish, Czech, and Simplified Chinese.
Will it find every difference?
No comparison tool should replace your review. OCR may misread text, automatic page pairing may be imperfect, and visual rendering may flag small appearance differences. Text comparison normalizes whitespace. Annotations, attachments, signatures, metadata, and hidden PDF objects are not compared.
Who is it for?
Freelancers reviewing a revised proposal, teams checking a specification, and anyone who needs a focused way to inspect two PDF versions. It provides review evidence, not legal advice or document certification.
How is it sold?
FolioDiff is being prepared for the Mac App Store as a one-time purchase, with no in-app purchases or subscription. The local price will be shown by the App Store when available.
A question about your review?
For help, feature requests, or a reproducible issue, contact the developer.
Please avoid sending confidential documents.