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#526 |
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#527 | |
Leftutti
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The second last mention of this problem with cross-reference was only 4 posts before your reappearance in this thread. The fact that pdfinfo.exe is the culprit has also been mentioned there, hence the workaround with replacement of the same. |
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#528 | |
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#529 |
Calibre Plugins Developer
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Shet - glad you have a workaround in the meantime. Perhaps Kovid may have a suggestion, or perhaps he like me cannot replicate issues with pdfinfo.
Last edited by kiwidude; 04-06-2024 at 08:53 PM. |
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#530 |
creator of calibre
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Works for me as well. pdfinfo.exe is built from poppler in a pretty standard way, see my bypy repository in github for the script used to build it. This will be something interfering on the affected computers. Note that nowadays, you shouldnt need to use pdfinfo for most things, you can use the podofo bindings for getting metadata for example, this avoids needing a separate process and so should be faster and possibly more robust, though I suspect podofo will fail on more malformed PDFs than pdfinfo, so you could fallback to pdfinfo. See podofo/__init__.py for the various python wrapper functions that can be used.
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#531 |
Calibre Plugins Developer
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Thanks very much Kovid for the confirmation and the suggestion of an alternative. I will take a look.
@Comfy.N - pdfinfo is only used to get page count metadata. After that it is a separate pdftohtml executable which is responsible for producing the book content that is parsed for ISBNs. So you will see zero difference between different pdfinfo versions in how many isbns get reported. Other than of course if the calibre bundled pdfinfo doesn't work for you at all. |
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#532 |
Calibre Plugins Developer
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Extract ISBN v1.6.2
Release Notes
https://github.com/kiwidude68/calibr...ct_isbn-v1.6.2 This now uses podofo as per Kovid's suggestion. @Shet please let me know how you get on with this one. To anyone who had tried using the zip I had attached yesterday of a test build - please make sure you replace that version with this one (it had the same version number so you will have to force install it). |
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#533 | |
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#534 |
Calibre Plugins Developer
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Extract ISBN v1.6.3
Release Notes
https://github.com/kiwidude68/calibr...ct_isbn-v1.6.3 Thaks to Paul Harden for the contribution which may help for those scanning PDFs. |
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#535 |
Connoisseur
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Can Extract ISBN also grep for LCCN?
I don't know how out of bounds my asking about this is, but LCCNs - Library of Congress Control Numbers - are very useful for grabbing metadata. They're described at Wikidata.
Books with cataloguing in publication data have it on the copyright page. |
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