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no pages in doc after clean up #4695
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A pdf has 60+ pages, but after clean up with the code below, page_count is 0
def _clean_up(file_path):
doc = fitz.open(file_path)
try:
tmp = BytesIO()
tmp.write(doc.write(garbage=3, deflate=True))
doc = fitz.Document('pdf', tmp.getvalue())
tmp.close()
except Exception:
...
return doc
I guess there is something wrong with the pdf, how can I identify?
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Replies: 1 comment
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You actually executed some type of test in that you saved the PDF (to memory).
You could have looked into string pymupdf.TOOLS.mupdf_warnings() right after your first open - MuPDF will try automatic repairs if it encounters issues.
In your case, probably the PDF's internal structure is damaged that is called "page tree" - container of pointers to the single page objects.
I am slightly confused by the way you do that save to memory - I would have simply done pdfstream = doc.tobytes(...), and then tmp = pymupdf.open(stream=pdfstream).
You might as well loop through the single pages after original open to confirm that there is a page tree problem:
for page in doc: print(f"Successfully accessed {page.number=}")
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