I created a print/paperback book in InDesign, then uploaded it to Amazon KDP as a draft for review prior to publishing. KDP's Print Previewer shows everything as desired. The physical proof copy received, however, exhibits the following issues:
[1] The spine items (author name, title, and logo) are not centered on the proof copy, yet they are centered in InDesign and KDP's Print Previewer.
[2] The illustrations and figures in the proof copy are readable but they are not as clear and crisp as they are in InDesign and KDP's Print Previewer.
[3] Some intentonally-faint-but-discernible graphical background in the cover and back cover are not discernible on the proof copy, but they are discernible in InDesign and KDP's Print Previewer.
[4] I selected "Black & white interior with white paper" for the "Ink and Paper Type" via KDP. Would selecting "Premium color interior with white paper" solve the problems in [2] and [3] above even though I want a black & white interior?
Does anyone have experience with these issues?