“Mac users running macOS Sierra 10.12.2 are being urged to avoid using Preview to edit PDFs until Apple fixes several bugs in the app that can cause corruption issues in the document format,” Tim Hardwick reports for MacRumors.

“The recommendation comes from TidBITS publisher Adam Engst,” Hardwick reports. “Writing on the online Apple newsletter website, Engst backs up fellow developer Craig Landrup’s claim that Apple’s decision to rewrite the PDFKit framework for macOS 10.12 has broken basic functionality that PDF-related developers rely on, such as compatibility with ScanSnap and Doxie scanners.”

Hardwick reports, “As to why issues have arisen in Apple’s native Preview application, Engst quotes approvingly the DEVONthink developer Christian Grunenberg, who characterizes the rewritten version of PDFKit in Sierra as a ‘work in progress.'”

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“t pains me to say this, speaking as the co-author of “Take Control of Preview,” but I have to recommend that Sierra users avoid using Preview to edit PDF documents until Apple fixes these bugs,” Adam C. Engst writes for TidBITS. “If editing a PDF in Preview in unavoidable, be sure to work only on a copy of the file and retain the original in case editing introduces corruption of any sort. Smile’s PDFpen is the obvious alternative for PDF manipulation of all sorts (and for documentation, we have ‘Take Control of PDFpen 8’ too), although Adobe’s Acrobat DC is also an option, albeit an expensive one.”

Engst writes, “In the meantime, we’ll be watching closely to see which of these PDF-related bugs Apple fixes in 10.12.3, which is currently in beta testing.”

Read more in the full article here.

MacDailyNews Take: The Sierra-bug swatting continues.