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Old 01-01-2022, 09:28 AM   #20
HiSven
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Hi, I have a question about converting a pdf file into ePub. I'm working with calibre and would like to publish the pub file on BOD (Book on demand). After uploading, I get a bunch of error messages (20 times nearly the same):

index_split_000.html (2,64):
Error while parsing file 'value of attribute "lang" is invalid; must be an RFC 3066 language identifier'.

How to deal with it? Which settings should I choose in Calibre?

Happy new year,
Sven
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