Adam Engst, writing for TidBITS:
It 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. 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
What went wrong? Engst quotes developer Christian Grunenberg:
Apple wants to use a common foundation for both iOS and macOS.
However, it was released way too early, and for the first time (at
least in my experience) Apple deprecated several features without
caring about compatibility. And to make things worse, lots of
former features are now broken or not implemented at all, meaning
that we had to add lots of workarounds or implement stuff on our
own. And there’s still work left to be done.
In other words, parity with iOS took priority.
On the bright side, when this happened with the iWork suite, the Mac apps eventually gained back most of the functionality that was removed for parity with iOS. But it sure seems like Apple pulled the trigger on this at least a year before it was ready.
★ Monday, 2 January 2017