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Old 09-18-2009, 06:27 AM   #258
Kirtai
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Posts: 300
Karma: 2454436
Join Date: Sep 2008
Device: PRS-505, PRS-650, iPad, Samsung Galaxy SII (JB), Google Nexus 7 (2013)
I have finally tracked this down. The problem is that some Sony readers and ADE version 1.7.1.1085 do not like 64 colour (4 bit) PNG images. If you do the conversion with 256 colours it works perfectly.

A bit of experimentation shows that both greyscale and colour JPEGs display correctly too.

I have added this as ticket #3529
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