Quote:
Originally Posted by thiago.eec
When I visualize the KFX (azw8) on KindlePreviewer (see the attached screenshot), it looks perfect, just like the ePub. But, when I sideload it to the device, on the Kindle Paperwhite screen, the gif has a gray background (see the screenshot attached). This gif is supposed to be tranparent. It shows properly on the device when I use AZW3 format, or when I convert it using KindlePreviewer directly (altough it will save on MOBI format).
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The
Amazon Kindle Publishing Guidelines explicitly state that image transparency is not supported, even though it does work in many cases.
When producing KFX format the Kindle Previewer converts all images to JPEG format causing transparency to be lost. You cannot prevent this.
The transparent background should be made white in the process, not gray. That is the case when I convert the modified Frankenstein book that you attached earlier in this thread.
If you attach your sample that instead shows a gray background when sideloaded then I will try to determine why it is not working as expected. I was able to reproduce the problem using the book you uploaded previously and I am looking into it.
Quote:
Originally Posted by thiago.eec
I am intrigued that when KindlePreviewer exports the MOBI file, the image looks fine on the device.
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I believe that the exported MOBI will contain the original GIF images with transparency, but it is not guaranteed to render properly on all Kindle apps/devices.