Quote:
Originally Posted by davidfor
This isn't something that has changed recently. If the firmware detects a change in a book on the device, it is removed from the internal database and reprocessed as a new book. The change it is looking for is file size. This is stored in the database. if the file size is different, it is reprocessed. There was a time that this was not the case, but that was a long time ago. It might actually have been changed with FW2.0.0, but it was definitely before FW2.8.1.
If you use calibre, the KoboTouch driver handles this. When a book is resent to the device, the driver updates the file size in the database. As long as you don't change the structure of the book this is safe. Fixing spelling, grammar. code in a page or the CSS is safe. But, changing the names of the files in an epub or changing the ToC is not. In this case the book needs to be deleted and reprocessed.
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My problem is different. It concerns books that are already on the device, being read, with no modification in size or metadata. When I switch from one to another after modifying police size on the first, the second one's size also is modified. Since different books need different adjustments in size, that means I have to modify the second one's police size, and so the first one's for instance when I return to it. I often go back and forth when a book mentions other books, plus I alternate big "heavy" books with quicker reads.