Save changed metadata to the file in the library

BerndSch · 02-12-2012, 04:22 PM

When I add a new book (epub or pdf) and edit the metadata I would to like to save the changed metadata directly to the library file.
How do I do this?

At the moment the metadata is only written into the calibre database but not stored into the ebook file.

That's a problem, because when I load the ebook through the calibre content server to my Transformer Prime (used App: Aldiko) the ebook on my device has no title, author or tags.

So how do I save the metadata in the ebook file after editing the metadata in calibre?

speakingtohe · 02-12-2012, 05:31 PM

convert or reconvert the book. PDF to PDF or epub to epub
Save to disk will do it as well, but then the copy is not in your library.

Helen

kiwidude · 02-12-2012, 06:35 PM

Read this thread

BerndSch · 02-13-2012, 12:45 PM

Ok, reconverting the PDF isn't an option, because the PDF is useless after the conversion. I don't want to convert the whole PDF, just add the metadata.

So I saved all my pdfs to disk, deleted the original PDF from the library and reimported it.

Really painful procedure!
I really don't know why it's not possible to add a "save metadata to library file" option, espacially when so much people are asking for such an option

speakingtohe · 02-13-2012, 02:07 PM

That is interesting. Generally I convert my PDF to epub. Which doesn't always work out well although most are ok if not a lot of large images in them.

I will try your approach for cookbooks etc.

Helen

theducks · 02-13-2012, 02:40 PM

Quote:

Originally Posted by BerndSch

Ok, reconverting the PDF isn't an option, because the PDF is useless after the conversion. I don't want to convert the whole PDF, just add the metadata.

So I saved all my pdfs to disk, deleted the original PDF from the library and reimported it.

Really painful procedure!
I really don't know why it's not possible to add a "save metadata to library file" option, espacially when so much people are asking for such an option

Not all formats have writable metadata.
Patches are always welcome.

speakingtohe · 02-13-2012, 08:39 PM

There are also a lot of permutations. Every week or so a new device added, around a dozen formats supported.

I have 4 or more formats for a lot of books, 8 if you count the original formats such as original_epub as I have several readers, tablets and my mothers as well to consider. Many have more formats.

People often complain about metadata update speed already. It would be slower if all formats were updated on the fly.

Still calibre evolves and as theducks said, if you submit a patch and it works well it will likely be incorporated.

Helen

PS AFAIK PDF support is pretty low priority at present so any outside support is probably doubly welcomed.

kovidgoyal · 02-13-2012, 11:12 PM

When you transfer books in either epub or mobi format via the content server, metadata in the transferred copy is automatically updated. PDF, no, because PDF is a disaster of a format.

02-12-2012, 04:22 PM	#1
BerndSch Junior Member Posts: 2 Karma: 10 Join Date: Feb 2012 Device: none	Save changed metadata to the file in the library When I add a new book (epub or pdf) and edit the metadata I would to like to save the changed metadata directly to the library file. How do I do this? At the moment the metadata is only written into the calibre database but not stored into the ebook file. That's a problem, because when I load the ebook through the calibre content server to my Transformer Prime (used App: Aldiko) the ebook on my device has no title, author or tags. So how do I save the metadata in the ebook file after editing the metadata in calibre?

02-13-2012, 08:39 PM	#7
speakingtohe Wizard Posts: 4,812 Karma: 26912940 Join Date: Apr 2010 Device: sony PRS-T1 and T3, Kobo Mini and Aura HD, Tablet	There are also a lot of permutations. Every week or so a new device added, around a dozen formats supported. I have 4 or more formats for a lot of books, 8 if you count the original formats such as original_epub as I have several readers, tablets and my mothers as well to consider. Many have more formats. People often complain about metadata update speed already. It would be slower if all formats were updated on the fly. Still calibre evolves and as theducks said, if you submit a patch and it works well it will likely be incorporated. Helen PS AFAIK PDF support is pretty low priority at present so any outside support is probably doubly welcomed. Last edited by speakingtohe; 02-13-2012 at 08:42 PM.

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02-12-2012, 05:31 PM	#2
speakingtohe Wizard Posts: 4,812 Karma: 26912940 Join Date: Apr 2010 Device: sony PRS-T1 and T3, Kobo Mini and Aura HD, Tablet	convert or reconvert the book. PDF to PDF or epub to epub Save to disk will do it as well, but then the copy is not in your library. Helen

02-12-2012, 06:35 PM	#3
kiwidude Calibre Plugins Developer Posts: 4,636 Karma: 2162064 Join Date: Oct 2010 Location: Australia Device: Kindle Oasis	Read this thread

02-13-2012, 12:45 PM	#4
BerndSch Junior Member Posts: 2 Karma: 10 Join Date: Feb 2012 Device: none	Ok, reconverting the PDF isn't an option, because the PDF is useless after the conversion. I don't want to convert the whole PDF, just add the metadata. So I saved all my pdfs to disk, deleted the original PDF from the library and reimported it. Really painful procedure! I really don't know why it's not possible to add a "save metadata to library file" option, espacially when so much people are asking for such an option

02-13-2012, 02:07 PM	#5
speakingtohe Wizard Posts: 4,812 Karma: 26912940 Join Date: Apr 2010 Device: sony PRS-T1 and T3, Kobo Mini and Aura HD, Tablet	That is interesting. Generally I convert my PDF to epub. Which doesn't always work out well although most are ok if not a lot of large images in them. I will try your approach for cookbooks etc. Helen

02-13-2012, 11:12 PM	#8
kovidgoyal creator of calibre Posts: 43,835 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	When you transfer books in either epub or mobi format via the content server, metadata in the transferred copy is automatically updated. PDF, no, because PDF is a disaster of a format.

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