Image error in ePub Fixed Layout export

[Luisa31908680t5oy]

Hi everyone!

All my images are looking like this when previewing in Apple Books. Can anyone help me?

 

[James Gifford—NitroPress]

What format are the original images in? What original size are they? And what object export settings (resolution, export format) are you using?

How are you placing them on your ID pages? Are they linked or embedded?

And are the images scanned from a printed book? In that case, part of this might be moiré from the half-tone patterns.

ETA: But before you do anything else, preview it in a more basic/vanilla viewer like Calibre. Viewers vary a lot, and Apple is a ways from completely standard.