[Bug]: pikepdf cropbox/mediabox/trimbox as list can return strings in the list

[jozuas]

What were you trying to do?

https://github.com/ocrmypdf/OCRmyPDF/blob/6ca4940a32bb1146f70c2bb2497e0d5c0fa9ca6b/src/ocrmypdf/pdfinfo/info.py#L890-L892

This can crash with

TypeError: float() argument must be a string or a real number, not 'pikepdf._core.Object

When /TrimBox of a page is like

/Contents 267 0 R
/TrimBox [3.05175781e-005 0 612 792]
/BleedBox [3.05175781e-005 0 612 792]
/ArtBox [3.05176e-005 0.479996 612 792]

Because pikepdf for [float(d) for d in page.trimbox.as_list()] returns

pikepdf._core._ObjectList([pikepdf.String("3.05175781e-005"), 0, 612, 792])

Where are you installing/running from?

source build

OCRmyPDF version

No response

What operating system are you working on?

No response

Operating system details and version

No response

Simple sanity checks

• [ ] Operating system is currently supported by its vendor (not end of life)
• [ ] Python version is compatible with OCRmyPDF
• [ ] This issue is not about a specific input file

Relevant log output

No response