FWIW, I started deleting the files in .kobo-images that end with "N3_FULL.parsed" at some point when I was running out of space on one of my kobos... Those are are the full size image displayed on the first page, so I didn't see a need to keep them around after I've read the book... for a recent read, for example, the N3_FULL image was 670K (interestingly, the original was just 145K), where the size of the other two combined was 60K, so deleting just the one image makes a huge difference, without slowing down navigating through books/collections/etc. And that image *will* get regenerated down the road if the book is re-opened.
With that, my kobo-images folder is just ~100mb with something like 4400 books.
|