提取中文pdf出现乱码 about pymupdf HOT 9 CLOSED

Please describe in English!

from pymupdf.

Please describe in English!

Please describe in English!
Using this tool to parse PDF Chinese documents resulted in garbled characters. Could you please help me take a look? Thank you very much. PDF document:
Python单元测试框架.pdf

from pymupdf.

This PDF is full of errors - see the following log during open:

import pymupdf
doc = pymupdf.open("Python (1).pdf")
print(pymupdf.TOOLS.mupdf_warnings())
format error: cannot recognize xref format
trying to repair broken xref
repairing PDF document
Bad or missing parent pointer in outline tree, repairing
... repeated 4 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 3 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 3 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing

When then saving to just contain the first page, no PDF viewer or extraction tool can extract meaningful text.

doc.select([0])
doc.ez_save("page1.pdf")

from pymupdf.

This PDF is full of errors - see the following log during open:

import pymupdf
doc = pymupdf.open("Python (1).pdf")
print(pymupdf.TOOLS.mupdf_warnings())
format error: cannot recognize xref format
trying to repair broken xref
repairing PDF document
Bad or missing parent pointer in outline tree, repairing
... repeated 4 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 3 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 3 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing

When then saving to just contain the first page, no PDF viewer or extraction tool can extract meaningful text.

doc.select([0])
doc.ez_save("page1.pdf")

https://github.com/pypdfium2-team/pypdfium2
This can be extracted. Can you help me take a look? Thank you very much

from pymupdf.

Sorry - as I wrote: this file has severe defects.
Whether or not some tools may still be able to extract things despite of this is a matter outside the scope we can deal with.

from pymupdf.

Sorry - as I wrote: this file has severe defects. Whether or not some tools may still be able to extract things despite of this is a matter outside the scope we can deal with.

好的，Thank you very much

from pymupdf.

Sorry - as I wrote: this file has severe defects. Whether or not some tools may still be able to extract things despite of this is a matter outside the scope we can deal with.

This PDF is full of errors - see the following log during open:

import pymupdf
doc = pymupdf.open("Python (1).pdf")
print(pymupdf.TOOLS.mupdf_warnings())
format error: cannot recognize xref format
trying to repair broken xref
repairing PDF document
Bad or missing parent pointer in outline tree, repairing
... repeated 4 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 3 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 3 times...
Bad or missing prev pointer in outline tree, repairing
Bad or missing parent pointer in outline tree, repairing
... repeated 2 times...
Bad or missing prev pointer in outline tree, repairing

When then saving to just contain the first page, no PDF viewer or extraction tool can extract meaningful text.

doc.select([0])
doc.ez_save("page1.pdf")

How can I determine whether this PDF has errors? Is there a corresponding API? Thank you very much

from pymupdf.

How can I determine whether this PDF has errors? Is there a corresponding API?

Some errors are already detected when the PDF is opened - like in this case, where the central cross reference (xref) table is broken. MuPDF will then try to repair things by generating a new xref table from walking through he full file. This is usually accompanied by error and warning messages. Some of those are written to the console, the full message are also stored in the area pymupdf.TOOLS.mupdf_warnings() - as shown.

Whether a repair had been tried can be determined by looking at doc.is_repaired.

Not all errors can be detected at open time though. Some will only be exhibited when certain information is extracted like text or during rendering the pages' visual appearance.

from pymupdf.

How can I determine whether this PDF has errors? Is there a corresponding API?

Some errors are already detected when the PDF is opened - like in this case, where the central cross reference (xref) table is broken. MuPDF will then try to repair things by generating a new xref table from walking through he full file. This is usually accompanied by error and warning messages. Some of those are written to the console, the full message are also stored in the area pymupdf.TOOLS.mupdf_warnings() - as shown.

Whether a repair had been tried can be determined by looking at doc.is_repaired.

Not all errors can be detected at open time though. Some will only be exhibited when certain information is extracted like text or during rendering the pages' visual appearance.

ok, Thank you very much!

from pymupdf.