Fujitsu has published a schedule for addressing problems with its ScanSnap software running in macOS 10.12 Sierra. A fix for scanning using ScanSnap models iX500, iX100, SV600, S1300i, and S1100i in Sierra became available on 6 October 2016, and the company promises an additional update on 17 October 2016 for ScanSnap models S1500, S1500M, S1300, and S1100. The ScanSnap Evernote Edition will receive an update by the end of October. Still to come, and with no estimated release date, are fixes for older PDF content created by ScanSnap scanners so those PDFs can be modified in Sierra. In the meantime, if you’re using Sierra, work on copies of older scanned PDFs and keep good backups. follow link
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ScanSnap Offers Fix Schedule for Sierra Compatibility
A better strategy may be not to upgrade now but to keep with the previous operating system until a more complete fix is made. I have many pdfs created by ScanSnap and am reluctant to risk their being corrupted.
yep, I need to use Sierra less than I need to maintain integrity in tens of gigabytes of scanned PDFs. I can wait.