Compare PDF decks, even when slides move.

A real browser walkthrough: follow a slide from 4 to 2, inspect its edited chart, catch a price edit, and check an ambiguous match.

Try the sample decks →

Open the app, then click “Try the sample decks.” No account or document upload. Prefer to self-host? Download the static build and serve the extracted folder over HTTP.

What to look for

  1. Load the included fictional Aster Studio PDFs with one click.
  2. Slide 4 → 2 has both Moved and Changed badges. The bars changed even though the extracted text did not.
  3. Slide 3 → 3 shows the removed $39 and added $49 numeric tokens.
  4. The two identical appendix pages are marked Check match. The warning explains the ambiguity.
  5. Open Correct this match to see the manual pairing controls. The recording does not choose an arbitrary pairing for identical pages.