Preview has strange behaviour when adding and editing annotations, even in Catalina. It quickly gets upsetting and unreliable.
How your Mac’s security and privacy systems can cause duplicate copies of files to be written to your backups.
Three Finder bugs in 10.15.3, from the plain silly to infuriating. Every Mac still has a hard disk, Preview Options that don’t work, and a very old fiend.
Dealing with protected PDFs in macOS: fully encrypted, and those with controls such as no printing or copying. Oh dear.
A great idea: tag blocks of text in a PDF and build them into reading order, so that they can be read out loud. How well does that work, then?
Searching this PDF using Preview is hopeless. Is it a bug in Preview or macOS? How can you get proper access to its contents?
One of the more confusing features of PDF apps, as none seems to work quite the same, and removing them isn’t quick or simple.
The Books app demonstrates how stultified is the approach to text on computers. It’s carefully engineered to work like a book, not to bring any new powers to text or reading.
Tables of Contents, Outline, Bookmarks: what’s the difference, and how portable are they in PDF?
How the quarantine flag for apps and that for docs opened in sandboxed apps differ, and why there are now so many quarantine flags to trip us up.