PDF metadata not updated when downloading from server

mirzok · 01-23-2013, 11:34 AM

Hi,

I'm a new user, and so far I'm enjoying Calibre very very much. I want to be able to organize my book collection (which primarily consists of EPUBs for regular books and PDFs for technical documents), and be able to access it remotely. Calibre's Content Server has been exactly what I want, except for one little thing.

When I download a PDF from my Content Server, the metadata, for some reason, does not get written to the file. I know that Calibre does not write metadata until the file is exported, but as far as I understood, downloading from the content server should be considered as file export? Am I missing something? How can I make it so that my corrected metadata gets written to a PDF when I download it from my content server? Is there a solution, or a workaround?

A few additional symptoms: The metadata gets written to PDFs properly when I save to disk, or e-mail the book. EPUBS work fine, and proper metadata gets written to the file, when downloading from the content server.

Thank you in advance.

kovidgoyal · 01-23-2013, 11:45 AM

Updating metadata in a pdf requires the whole file to be read into memory and re-written, as such it is not supported in the content server.

mirzok · 01-23-2013, 11:54 AM

I see, thank you for your answer. Is there any way to force Calibre to write PDF metadata as a Job?

kovidgoyal · 01-23-2013, 10:46 PM

I'm afraid not.

Adoby · 01-24-2013, 10:17 AM

One workaround could be to save the PDFs to disc to update the metadata inside the PDFs. And then import the books to Calibre again.

mirzok · 01-25-2013, 10:36 AM

Ok, thank you for all your suggestions.

01-23-2013, 11:34 AM	#1
mirzok Junior Member Posts: 3 Karma: 10 Join Date: Jan 2013 Device: Android	PDF metadata not updated when downloading from server Hi, I'm a new user, and so far I'm enjoying Calibre very very much. I want to be able to organize my book collection (which primarily consists of EPUBs for regular books and PDFs for technical documents), and be able to access it remotely. Calibre's Content Server has been exactly what I want, except for one little thing. When I download a PDF from my Content Server, the metadata, for some reason, does not get written to the file. I know that Calibre does not write metadata until the file is exported, but as far as I understood, downloading from the content server should be considered as file export? Am I missing something? How can I make it so that my corrected metadata gets written to a PDF when I download it from my content server? Is there a solution, or a workaround? A few additional symptoms: The metadata gets written to PDFs properly when I save to disk, or e-mail the book. EPUBS work fine, and proper metadata gets written to the file, when downloading from the content server. Thank you in advance.

01-23-2013, 11:45 AM	#2
kovidgoyal Creator of calibre Posts: 22,519 Karma: 2944574 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Updating metadata in a pdf requires the whole file to be read into memory and re-written, as such it is not supported in the content server. __________________ Get calibre Notice to all: I can not provide assistance with DRM removal, for legal reasons, so please do not contact me about it.

01-23-2013, 10:46 PM	#4
kovidgoyal Creator of calibre Posts: 22,519 Karma: 2944574 Join Date: Oct 2006 Location: Mumbai, India Device: Various	I'm afraid not. __________________ Get calibre Notice to all: I can not provide assistance with DRM removal, for legal reasons, so please do not contact me about it.

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01-23-2013, 11:54 AM	#3
mirzok Junior Member Posts: 3 Karma: 10 Join Date: Jan 2013 Device: Android	I see, thank you for your answer. Is there any way to force Calibre to write PDF metadata as a Job?

01-24-2013, 10:17 AM	#5
Adoby Handy Elephant Posts: 471 Karma: 1177340 Join Date: Dec 2009 Location: Southern Sweden, far out in the quiet woods Device: Ubuntu Linux, Cybook Opus, Motorola Xoom with Mantano	One workaround could be to save the PDFs to disc to update the metadata inside the PDFs. And then import the books to Calibre again.

01-25-2013, 10:36 AM	#6
mirzok Junior Member Posts: 3 Karma: 10 Join Date: Jan 2013 Device: Android	Ok, thank you for all your suggestions.


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