Good day, all. I'm desperately trying to resolve an issue that I have tried for days to fix. The images are all fine in my InDesign document. They are PNGs with no background. I've tried EPS and TIFFs with clipping paths. And still, I get the same issue.

Which is....when I publish the document and view it online. The backgrounds are white - as if all the deep etching disappeared.

Please advise - I don't know what else to do.