I imported a PowerPoint file but its pages are slowly rendered

Problem

Sometimes you might notice that a particular imported PowerPoint file (or PDF file created from a PowerPoint file) is rendered slowly when scrolling through the pages leaving sections of the page white. It may look similar to this:

Solution

It's an Apple's rendering issue with Microsoft-created PDFs that Goodnotes has little control over. While the Files app might render the original PowerPoint file smoothly, if you "print" it to a PDF from within that app, the app will also likely have difficulty displaying the PDF.

Please convert the PowerPoint file to a PDF with an online tool like Zamzar.com and import that PDF instead.

For further suggestions, see My PDF is loading slowly or displayed incorrectly.