Quote:
Originally Posted by davidfor
I'm not exactly sure what you did here. But, calibre doesn't upscale images. It will downscale them based on the selected output profile. I generally recommend using the "Tablet" profile as it sets the sizes large enough that images will not be resized.
The other thing is that when you do a conversion to the same type, calibre saves the original as "ORIGINAL_EPUB". Any further conversions will use this, not the new file. This is something I always forget as I convert, fix a problem, do another conversion and lose the fixes.
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Yeah I did change the original, I dind't know that calibre just downscale images, so my changes were lost in the new epub after a convert them. But I do think this is a problem with the way kobo reads the books or interpret the images. I'll just have to double the resolution on all my images from now on. It will make the ebooks bigger, but I guess it's a good thing I can expand the storage SD card.