PDF-handling problems in Sierra that broke ScanSnap are back in 10.12.2, many apps affected
Back in September, a major bug with PDF-handling that led to Fujitsu temporarily warning ScanSnap owners to cease using their scanners with Sierra. The problem was later identified as a bug in the PDFKit framework in macOS 10.12.
Take Control of Preview co-author Adam Engst (via Daring Fireball), says that although Apple applied fixes in 10.12.1, it has reintroduced bugs in 10.12.2 – to the extent that he now advises against using Preview for PDF editing at all for now …