spiritsoul Posted December 15, 2022 Share Posted December 15, 2022 I know this is and older post, yet, now we are in V2 Dec 2022 and on Windows 10 Desk version still no PDF/X 3 RGB option. Tried the google universe. All I wanted to know was which pdf version would support flattening in RGB mode. i.e. 1.6, 1.7, 1.8 vs pdf/x 1, pdf/x 3. My main goal is KDP paperbacks covers. From my experience KDP does a better job of rgb to cmyk conversion (they make adjustments to color themselves). The problem with cmyk is not knowing exactly 'which' cmyk profile a printer uses (KDP has no such info). My previous designers all sent 1.7 rgb pdf's for me to use. But, now that I've bought Affinity, I can easily create the book covers myself, excuse me, that is until I have to convert. Unfortunately all the breakdown of pdf versions/mode I searched, never mention anything about flattening pdf transparencies in 1.6, 1.7, 1.8 (which appears to be what designers use but I wanted to make sure). Even Affinity's help doesn't address the flattening of transparencies in the listed pdf modes (except pdf/x), yet, they state pdf/x-3:2003 has RGB option. I wish there was somewhere in the Universe that just had a chart listing pdf/versions/modes like V# - Supports Transparencies Y or N - Supports Flattening of Transparencies Y or N - Supports RGB Y or N I've spent hours on this and I tried 1.7, yet don't know how to confirm if it was flattened or not??? Quote Link to comment Share on other sites More sharing options...
Twolane Posted December 15, 2022 Share Posted December 15, 2022 I have 15 or more POD books up on Ingram Spark and Amazon. I used Photo for the covers and Publisher to create them. I used CMYK for the covers. I flattened the covers using Photo, saved as PDF, and up they went using PDF/X-1a:2003 with nary a hitch. I also used PDF/X-1a:2003 for the text body PDFs that were uploaded as well. My books are all B&W text, with the occasional B&W image inside at the beginning preceding the book text. You need 300dpi and CMYK for the IS and Amazon POD covers. RGB doesn't cut it. Quote Link to comment Share on other sites More sharing options...
spiritsoul Posted January 10, 2023 Share Posted January 10, 2023 Here's what I did that got a flattened RGB that KDP accepted (and looks good on paperback thumbnail on Amazon). Quote Link to comment Share on other sites More sharing options...
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