Thread: What to do about "Failed to set metadata for the PDF format" on export?
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Old 12-27-2020, 08:14 PM   #1
halloleo
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What to do about "Failed to set metadata for the PDF format" on export?
Hi!

I regularly export the books in my library with embedded metadata (via calibredb export) so that other tools can see/index them.

Now I get the following error:

Code:
Failed to set metadata for the PDF format of: Owner's Manual – HS11/HS33
Traceback (most recent call last):
  File "calibre/utils/podofo/__init__.py", line 38, in set_metadata
  File "calibre/utils/ipc/simple_worker.py", line 256, in fork_job
  File "calibre/utils/ipc/simple_worker.py", line 181, in run_job
  File "calibre/utils/ipc/simple_worker.py", line 120, in communicate
calibre.utils.ipc.simple_worker.WorkerError: Worker failed

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "calibre/customize/ui.py", line 447, in set_file_type_metadata
  File "calibre/customize/builtins.py", line 544, in set_metadata
  File "calibre/ebooks/metadata/pdf.py", line 187, in set_metadata
  File "calibre/utils/podofo/__init__.py", line 42, in set_metadata
Exception: Failed to set PDF metadata in (Owner's Manual – HS11/HS33): Traceback (most recent call last):
  File "calibre/utils/ipc/simple_worker.py", line 304, in main
  File "calibre/utils/podofo/__init__.py", line 99, in set_metadata_
podofo.Error: An internal error occurred.
File: /private/var/folders/hb/2_22y10x72j2tltq8b0ygzp80000gn/T/t/podofo-avye7kfp/src/base/PdfParser.cpp Line: 272 Unable to load objects from file.
File: /private/var/folders/hb/2_22y10x72j2tltq8b0ygzp80000gn/T/t/podofo-avye7kfp/src/base/PdfParserObject.cpp Line: 403 Unable to parse the stream for object 867 0 obj .
File: /private/var/folders/hb/2_22y10x72j2tltq8b0ygzp80000gn/T/t/podofo-avye7kfp/src/base/PdfEncrypt.cpp Line: 411 Error AES-decryption data
How can I fix this? It looks like that one particular book ("Owner's Manual – HS11_HS33.pdf") has some encryption set, but I can view the file without any password, so I don't understand why calibe has problems setting metadata.
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