[pumpkinwhite]

I wanted to report an issue I'm seeing with the latest version (version 5.6.2). I'm using the new Kindle Scribe profile. The conversion is not scaled properly on every page. There is an empty border - sometimes on the top and left, sometimes on top and right etc. Sometimes there is no border and it's perfectly scaled. The end result is that image 'jumps' from left to right or changes in scale depending on whether it is scaled to full screen or not, or which side has the empty border. However, if you use the 'Other' setting and with 1440x1920 resolution, each page is scaled perfectly. (I'm not using the native Scribe resolution since Kindlegen will downscale it anyway). In either case, it doesn't matter whether the 'Stretch/Upscale' setting is ticked or not. The output remains the same (i.e. the 'Kindle Scribe' setting version is not scaled properly, which the Other 1440x1920 resolution is scaled properly).

Also, not sure if it matters - I'm starting with a 188.2MB CBZ file. The Kindle Scribe setting version gets converted to a 118.6MB file, while the Other 1440x1920 version gets converted to a 158.2MB file.

Conversion using the 'Kindle Scribe' version is indeed slightly faster (but not by much). It seems like the 'Kindle Scribe' preset has some issue where the image is not getting scaled perfectly.

Edit: Note - In case anyone is not aware, I'm using 1440x1920 resolution since that's the maximum resolution that Kindlegen outputs to. Using the native resolution will downscale the image to this size anyway, and it is extremely slow (Takes 15-20min instead of the typical 1-2min).