07-09-2011, 06:54 AM | #1 |
Junior Member
Posts: 2
Karma: 10
Join Date: Jul 2011
Device: PRS 600
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Programmatically handling collections
Hi all,
I'm writing some custom scripts for my ebook library, and I have a large number of PDF ebooks (~150) which I'd like to classify in collections. Calibre can do this, but I was wondering if there was a way to set collection information directly in PDF properties. Storing the classification info in the PDFs would be nice, since it would be permanent, and wouldn't rely on calibre's database. Plus, it would be much easier to script. I'm basically searching for a PDF field which the reader would read (just like it reads the title and author fields) and use as collection (possibly with support for multiple collections, separated in some way. Is there such a PDF metadata field? Otherwise is there a simple way to tag pdf collection information programmatically (simple as in not having to do it manually through calibre). Thanks for your help! Wakata. |
07-10-2011, 06:19 PM | #2 | |
Connoisseur
Posts: 73
Karma: 530904
Join Date: Apr 2011
Device: Sony PRS-950, Onyx Boox M92 and i62HD
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Quote:
You've brought up an interesting idea. Like you, I love the .pdf format and have a similar if not larger collection. The tags meta data field in the Calibre database is what drives the collections names when the books are transferred to the Sony PRS. Each of the tag terms which are separated by commas forms one Sony PRS collection name. What I've noticed is when I add a .pdf book, the entries in the .pdf Subject and Keywords fields are combined and put into the Calibre tags field. Another idea you might want to consider is using the meta data update function in Calibre to go out to the web and download the book's metadata from Amazon, Google, Openbooks, etc. You'll get a very comprehensive metadata description which goes beyond anything you'd find in a .pdf file. Personally, what I've found is the Calibre tags are being created in a more granular fashion than is practical so I'm planning on editing down the number of tag terms I have in order to reduce the number of collections being generated on the reader (currently in excess of 700). |
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collections, metadata, scripting |
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