@silver18: Small tip about issue we encountered during work on KCC.
To maximize the quality on e-ink display you need two separate images per page.
If you resize image to device resolution it looks perfect without zoom but obviously quality of zoom is catastrophic due too small resolution of image.
If you want to have best zoom quality you need to resize image to 150% of device resolution. But then due to downscaling when zoom if off image can be a slightly blurry.
That is reason we started using two images per page - one for zooming and second one for unzoomed state.
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