While export to Epub it shows warning

Question

I am working in InDesign 2020, while I do export to epub, it show below warning for some images, anyone know how to fix this issue. Or let us know the issue behind this. I tried in different system but same issue.

Export to Reflowable Epub with Mathml. We used

Thanks

Ganesh.R

J E L · Answer

@Ganesh_In This is likely the process of trying to flatten the PNGs during the export process to replace the transparency with a white background. Do a test and swap out a PNG with a JPG to see if you get the same error message for that file. As long as the ePub is viewing properly and your images are appearing as you like, then you could ignore the errors. I try to make sure I don't get any errors when exporting, though, if I can.

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