InDesign failing to export due to invalid PNG

[daniels77045327]

My InDesign is failing to export a PDF due to an invalid PNG. Yet I removed ALL PNG's in the document. And error still appearing..

[Derek Cross · Accepted solution]

Save a copy of the document in IDML format rename it and open it in InDesign again and see if you can Export it to PDF now.

[daniels77045327]

Thank you for this!

This seemed to have worked. Do you know why this is an issue? Perhaps something with PNGs? or just a fault within InDesign?

[Derek Cross]

Crud builds up in an InDesign document when you work on it for a long time, saving it as an IDML cleans it up and rebuilds it.

[Willi Adelberger]

Where did the png come from?

Why did you choose png on the first place?

Did you use eps files?

Did the IDML method solve your problem?