Importing pdf with different page formats breaks "adjust document" option

Describe the bug
If you have a pdf file with different page formats, when importing you'll get misalignment of pages.

To Reproduce
Steps to reproduce the behavior:

1. Get a pdf with Vertical and Horizontal pages (scanning from an app on your phone for example).
2. Import with "Adjust document" enabled (i'm using a spanish-translated version).

Expected behavior
The document should adjust format "page-per-page" so that each page gets the same size/format from the original.

Screenshots

Here i've used CamScanner for some university stuff. Page borders are in dark blue. You can see how the second scanned-page is horizontal, and the third scanned-page is starting in the middle of the second document-page, cropping it at the middle when trying to export afterwards.

Desktop (please complete the following information):

• OS: Windows 11 Home 25H2
• App Version: Rnote v0.14.2
• Installation Source: GitHub repo
• Desktop Environment: *.
• Display Server: *.
• Input Source: Mouse and Keyboard.

*: I have no idea. I'll edit if you help me get this information.

Additional context
If there's currently a way to configure the import so that my expected behaviour is actually executed, then i apologise and ask for you to explain this. In that case, i'll come up with another issue explaining how UNintuitive the import options are, since i've tried many option combinations already and this seems to be the closest to what i want.