"Final_v7_REALLYfinal.pdf" lands in your inbox. What actually changed since v6? Reading both side by side is how errors slip through.
Kameleo reconstructs each version's text lines from the page geometry, then runs the same longest-common-subsequence algorithm code review tools use. Added lines show green, removed lines red, and a changes-only view strips the noise. A one-word edit in a 40-page contract surfaces in seconds.
Text diffing compares words, not appearance — a moved logo or changed font passes silently. And scanned versions need OCR first, since scans carry no text. For contracts and reports, though, text is what you're really reviewing.
Diff every returned draft before signing. It's thirty seconds, it's free, and both files stay on your device.