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itimpi · 12-01-2010, 08:31 AM

I have had a look at some of my books, and most of them seem to be set to 96 dpi. However I did find some set to the 1dpi value you mentioned. I could not see if this related to the version of calibre used to create the files or some other cause. I am wondering if perhaps it is something like it varies between the case where the cover is downloaded and when it is extracted from an exiting book.

I suspect in most places within Calibre it is only interested in the width/height in pixels of the cover, and does not pay any attention to the dpi value so that what it is set to has not mattered

12-01-2010, 08:31 AM	#2
itimpi Wizard Posts: 4,553 Karma: 950151 Join Date: Nov 2008 Device: Sony PRS-950, iphone/ipad (Marvin/iBooks/QuickReader)	I have had a look at some of my books, and most of them seem to be set to 96 dpi. However I did find some set to the 1dpi value you mentioned. I could not see if this related to the version of calibre used to create the files or some other cause. I am wondering if perhaps it is something like it varies between the case where the cover is downloaded and when it is extracted from an exiting book. I suspect in most places within Calibre it is only interested in the width/height in pixels of the cover, and does not pay any attention to the dpi value so that what it is set to has not mattered Last edited by itimpi; 12-01-2010 at 08:37 AM.