"In spite of feedback from developers and beta testers, Apple made changes to PDFKit that didn't improve viewing/editing of PDFs, but caused serious compatibility problems (including possible data loss) for some PDFs previously created by some software, such as Fujitsu's ScanSnap Manager and QuickBooks. IMHO, this is a quality assurance booboo by Apple, and simply should not have happened.

The impacts on use of PDFs in DEVONthink are relatively minor (except for those including original (non-OCRed) ScanSnap Manager produced or QuickBook produced documents).

A maintenance release of DEVONthink will be made this month."

Quelle: DEVONtechnologies-Forum

Bei der Gelegenheit einen Hinweis: Ich kann nur davor warnen, den Dokument-Ordner in die iCloud zu übertragen, solange dort DEVONthink-Datenbanken eingeordnet sind. Wer vorhat, den Dokumente-Ordner in die iCloud zu verschieben, sollte vorher alle Datenbanken in ein anderes Verzeichnis (z.B. im Benutzer-Root) verschieben. DEVONthink-Datenbanken gehören nicht in die iCloud!

"For your data’s safety, we strongly suggest putting your databases in a folder in the root of your User Account, say ~/Databases or on an external drive, if space is limited."

Quelle: ebenfalls DEVONtechnologies-Forum