Flattening annotations permanently

[MartinMayoIglesias]

Hi, I have a PDF with digital signatures which were not merged/fused into the pdf so they are floating around it (one can move them). I want to "flatten" them permanently (i.e. make them permanent part of the pdf). When I inspect the PDF byte stream I see them as Annotation objects.

How can I make them permanently part of the PDF?? I don't want to render the whole page into a pixmap.

(a non python solution is, for instance, in Macbook: Open the file in Preview and then File ---> Print ----> Print to PDF)

[JorjMcKie]

There is a Document method specifically made for this situation: doc.bake(annots=True, widgets=True).
All annotations and all form fields on all pages are converted to permanent page content.
The resulting PDF is no longer a Form PDF.
https://pymupdf.readthedocs.io/en/latest/document.html#Document.bake

[LukeNK]

This works. Thank you!