PUBLISHING: Why are there colour diffs from layout > published

[Aurasphere]

So this is what I see on the layout...perfect (bitmap with 2d overlay of fill/lines etc

and this is the published PDF

Why???

Operating system used: Windows

[Lingwisyer]

Some odd interpretation of an alpha channel that creates the white space over the blue? Is the map a flat image?

[Aurasphere]

I accidentally hit solution...not sure how to revert (EDIT: fixed)

No, its a pasted PNG...no alpha involved

[Lingwisyer]

.png file can contain an alpha channel. Try opening your image in an editor and saving it out as a .jpg

[Aurasphere]

I only use lossless formats...but Ill try out of ps as another non alpha for testing. I have always done this so not sure what has changed

jpg is of no value in terms of size as its always represented internally in a full colourspace as you probably know eg jpg saves out small but all progs use it uncompressed.

[Lingwisyer]

More just to test, as .jpgs are flat.

[Aurasphere]

Well it seems you cant set 'transparent'...causes the issue. Hmm when are we going to get overlay controls in layout book...only asked for it about 15 years ago...hehe