Importing a web page directly from Safari is convenient, however occasionally you might experience changes in how the webpage looks or even an error telling you that the document is forbidden because you do not have permissions.
This is because by default Safari might send the full web page as an image.
- Show Reader View:
- Tap Share > "Options >" (next to the web page title):
- Choose either PDF or Reader PDF and tap Back.
- Tap "Open in GoodNotes" and confirm.
Here's a screen recording you can follow.