Only way to have high quality zooming is use images with dimensions higher than reader resolution. Some e-readers downscale too big images - so high quality zoom is possible.
In PRS-T3 case I highly doubt that is possible. Try using 1137x1401 target resolution (150%). But it probably just fall apart.
Last edited by AcidWeb; 11-15-2013 at 12:03 PM.
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