Calibre sometimes not importing PDF books....

piano4tay · 10-25-2016, 10:33 AM

Hi Folks,

I've recently discovered that Calibre is - apparently randomly, since it doesn't happen all the time - not correctly importing eBooks in pdf format. The title appears in the 'Title' column but there's no cover (just the generic brown thing) and under 'Author' is listed 'unknown'. When I click on the File Path the book appears to be there, along with metadata, but the file size is very small (eg. 0.1 MB for a 2.4MB book), and it won't open in Acrobat because 'the root object is missing or invalid'. My original file which I've tried to import is fine and opens in Acrobat, and has no security protection. This has happened several times now with random books, and unfortunately may have been going on for some time with several versions of Calibre (currently using 2.68). Can anyone help with a solution?

Thanks!

Mark

theducks · 10-25-2016, 11:12 AM

https://www.mobileread.com/forums/showpost.php?p=13
60872&postcount=1

Incorrectly?

Besides being PDF with those issues mentioned in the Link

Calibre expects All books to supply proper metadata (when not in Filename mode)

Missing Metadata... Missing/broken Declaration (in book)

Do Small Batches and fix as you go

(assumes that there are not other PDF issues)

kovidgoyal · 10-25-2016, 11:16 AM

calirbe does not touch files when importing. The imported copy is a byte-to-byte exact copy of the original file. The only exception to that is if you have installed some thrird party plugin like the DRM removal plugin, that modifies files on import. Uninstall/disable that plugin and you will be fine.

piano4tay · 10-27-2016, 08:57 AM

Many thanks Kovidgoyal - that solved the problem!

Mark

10-25-2016, 10:33 AM	#1
piano4tay Junior Member Posts: 2 Karma: 10 Join Date: Jul 2009 Device: none	Calibre sometimes not importing PDF books.... Hi Folks, I've recently discovered that Calibre is - apparently randomly, since it doesn't happen all the time - not correctly importing eBooks in pdf format. The title appears in the 'Title' column but there's no cover (just the generic brown thing) and under 'Author' is listed 'unknown'. When I click on the File Path the book appears to be there, along with metadata, but the file size is very small (eg. 0.1 MB for a 2.4MB book), and it won't open in Acrobat because 'the root object is missing or invalid'. My original file which I've tried to import is fine and opens in Acrobat, and has no security protection. This has happened several times now with random books, and unfortunately may have been going on for some time with several versions of Calibre (currently using 2.68). Can anyone help with a solution? Thanks! Mark

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Calibre hangs when importing books	Cheepnis	Library Management	9	02-05-2012 08:21 PM
iPad is Superior to Android for Importing Calibre-Organized PDF's (Show Me I'm Wrong)	Madmick	Android Devices	23	01-13-2012 07:03 PM
Calibre hangs on importing books	KaintukeeBob	Library Management	13	01-29-2011 05:37 PM
importing books into calibre and metadata - I think!	Yirabeth	Library Management	9	01-26-2011 05:30 PM
importing drm'ed pdf to calibre	ssachida	Calibre	3	08-25-2009 09:24 PM

10-25-2016, 11:12 AM	#2
theducks Well trained by Cats Posts: 30,452 Karma: 58055868 Join Date: Aug 2009 Location: The Central Coast of California Device: Kobo Libra2,Kobo Aura2v1, K4NT(Fixed: New Bat.), Galaxy Tab A	https://www.mobileread.com/forums/showpost.php?p=13 60872&postcount=1 Incorrectly? Besides being PDF with those issues mentioned in the Link Calibre expects All books to supply proper metadata (when not in Filename mode) Missing Metadata... Missing/broken Declaration (in book) Do Small Batches and fix as you go (assumes that there are not other PDF issues)

10-25-2016, 11:16 AM	#3
kovidgoyal creator of calibre Posts: 44,564 Karma: 24495948 Join Date: Oct 2006 Location: Mumbai, India Device: Various	calirbe does not touch files when importing. The imported copy is a byte-to-byte exact copy of the original file. The only exception to that is if you have installed some thrird party plugin like the DRM removal plugin, that modifies files on import. Uninstall/disable that plugin and you will be fine.

10-27-2016, 08:57 AM	#4
piano4tay Junior Member Posts: 2 Karma: 10 Join Date: Jul 2009 Device: none	Many thanks Kovidgoyal - that solved the problem! Mark

Advert