PDF metadata writer plugin is definitely enabled and working for title and author...but not tags...for me, anyway.
I'm not just grabbing and dumping from calibre library. I'm using save to disk (single directory, update metadata checked, separate image unchecked, save separate .opf unchecked (also tried this checked, still doesn't work...)
Calibre is great at mass information downloads and some other stuff like converting books, but I just don't like using it to actually manage my books (not yet, anyway...maybe it'll grow on me). So the metadata in .opf, rather than the actual .pdf, is not what I want I don't think (I only just started out trying to manage my thousands of .pdfs, so I don't really know what I'm talking about...)
My command line tricks involve cleaning the filenames containing stuff like "&_-'"<>" with some scripts (after exporting from calibre with filename {title}, then doing a: "calibredb catalog whatever.csv --fields=tags --sort-by=title_sort"
So then, exported files on my disk "line up" (I hope!) with the list of tags exported using calibredb, when the first line is removed from the file containing list of tags.
Then, using awk, merge a list of files exported to disk line for line with the list of tags..and add "exiftool -keywords+=" to every line. Then execute the file.
It works, as long as calibre is set not to download too many tags...
That sounds really simple when you write it down! (it isn't)
I don't have an ereader, so these other formats are a little unusual to me.
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