KFX image import seems to lose color

djspathis · 08-31-2020, 07:23 PM

I've tried searching for loss of color in convert from KFX (to EPUB or PDF) and did not find anything useful.

I have a [recently published] Amazon purchased ebook that I am trying to convert into EPUB or PDF format. I've successfully applied DeDRM and have it in Calibre and it does convert to both EPUB and PDF. The issue I'm having is that all the images except the cover are monochrome in the converted files but they're in color in the Kindle rendered version. Is this a known problem? Is there a special option or procedure I'm missing?

Additional details:
I have KFX Input 1.33.0 and Calibre 4.23.0. I used K4PC v1.19 or 1.24 for various conversions and can't recall exactly which one was use for this specific ebook. I did not think it would matter but mention it just in case.

Thanks in advance,
-DJ

kovidgoyal · 08-31-2020, 11:11 PM

KFX is not a suitable format for conversion. It is often specialised for individual devices, which includes grayscaling and downsampling of images. Use the azw3 which you can get from your manage my content page on amazon.com

08-31-2020, 07:23 PM	#1
djspathis Junior Member Posts: 1 Karma: 10 Join Date: Aug 2020 Device: none	KFX image import seems to lose color I've tried searching for loss of color in convert from KFX (to EPUB or PDF) and did not find anything useful. I have a [recently published] Amazon purchased ebook that I am trying to convert into EPUB or PDF format. I've successfully applied DeDRM and have it in Calibre and it does convert to both EPUB and PDF. The issue I'm having is that all the images except the cover are monochrome in the converted files but they're in color in the Kindle rendered version. Is this a known problem? Is there a special option or procedure I'm missing? Additional details: I have KFX Input 1.33.0 and Calibre 4.23.0. I used K4PC v1.19 or 1.24 for various conversions and can't recall exactly which one was use for this specific ebook. I did not think it would matter but mention it just in case. Thanks in advance, -DJ

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08-31-2020, 11:11 PM	#2
kovidgoyal creator of calibre Posts: 45,345 Karma: 27182818 Join Date: Oct 2006 Location: Mumbai, India Device: Various	KFX is not a suitable format for conversion. It is often specialised for individual devices, which includes grayscaling and downsampling of images. Use the azw3 which you can get from your manage my content page on amazon.com

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