![]() The positioning behavior may be intentional, but it forces users to scroll sooner to see more text than they would have in the past. ![]() And second, Preview scrolls to center the selected heading vertically in the window, rather than near the top. First, after you click the ToC entry, an entry higher up usually ends up selected. ![]() Plus, clicking items in a PDF’s sidebar table of contents suffers from two problems. Although I wasn’t able to reproduce these problems, some users have reported issues with note annotations being transparent. This behavior forces independent developers to implement workarounds, disable features, or put up with user complaints while hoping that Apple fixes the bugs. That’s helpful for Preview users, of course, but real fixes would be better. Somewhat annoyingly, Apple has worked around many of these bugs in Preview rather than fixing them in the underlying PDFKit framework. Now, clicking in a zoomed page ignores the click-down point and immediately jumps to the top of the page. Previously, in Landrum’s app, you could zoom in on a page and then use a hand tool to pan around. Grunenberg also pointed out that PDFKit used to provide a sidebar for viewing all the note annotations in a PDF, but that was removed in Sierra and hasn’t yet made a comeback in High Sierra.Ĭraig Landrum of Mindwrap, developer of the scan-to-PDF app Optix, discovered that panning a PDF no longer works properly in High Sierra. Both Jon Ashwell and Christian Grunenberg said that creating a highlight annotation now obscures the underlying text, and Grunenberg is trying to work around the problem in the next update to DEVONthink. That’s not to say that everything is Riesling and roses, though. And Christian Grunenberg of DEVONtechnologies, makers of DEVONthink, pointed out that some minor rendering glitches had also been fixed and concluded, “Overall, it’s a step forward for Sierra users.” EagleFiler developer Michael Tsai of C-Command Software said that he had noticed that Apple had eliminated a crashing bug related to contextual menus, along with a horizontal scrolling bug. On the plus side, Jon Ashwell of Sonny Software, who writes the Bookends bibliography app, noted that Apple had fixed two crashing bugs he had encountered, one on opening certain PDFs and another when rendering. So what’s the PDFKit situation in 10.13 High Sierra? I polled my PDF-savvy developer friends, and the response was mixed. That occurred because Apple chose to rewrite the PDFKit framework, presumably for better compatibility with iOS, but in the process both removed features and introduced numerous bugs (see “ Sierra PDF Problems Get Worse in 10.12.2,” 2 January 2017, and “ PDF Problems Continue in 10.12.4, but Primarily Affect Developers,” 3 April 2017). Last year, when macOS 10.12 Sierra shipped, one of the main pain points revolved around PDF handling. #1627: iPhone 14 lineup, Apple Watch SE/Series 8/Ultra, new AirPods Pro, iOS 16 and watchOS 9 released, Steve Jobs Archive.#1628: iPhone 14 impressions, Dark Sky end-of-life, tales from Rogue Amoeba.#1629: iOS 16.0.2, customizing the iOS 16 Lock Screen, iPhone wallet cases, meditate for free with Oak.#1630: Apple Books changes in iOS 16, simplified USB branding, recovering a lost Google Workspace account.#1631: iOS 16.0.3 and watchOS 9.0.2, roller coasters trigger Crash Detection, Medications in iOS 16, watchOS 9 Low Power Mode.
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