nothing wrong with a valid question.
My point was that you can turn on and of the objects by selecting and deselecting them (the objects and not the layers) in the layers palatte. That behavior is very similar to the layers function, right? I'm not adept at illustrator but I would be hard pressed to tell you what the difference is from a UI standpoint or even what the functional differences would be. Conceded that could be in part to my inexperience with Illustrator and perhaps Illustrator lets you fundamentally work with layers in a way it won't let you work with objects. Sorry if you have gone over that and I missed your explanation. I've not read every post.
This goes all the way back to my earlier question. Do you know what the consequence of PDF being an interpreted language really is?
Acrobat interprets it as it is, Illustrator interprets it how it likes to, Photoshop interprets it as a bitmap, Ghostscript? best not mentioned.
The format is the format. How various interpreters deal with the format is a very different thing.
Let me make certain that you understand that I'm not trying to pick a fight or support RP at all. He's been out of gas for a long time.
And I understand that, so no worries there.
ETA: Please ignore my last question. I missed this. Sorry. I'm probably making much more of this than is warranted. I'm just not experienced enough.
Not a problem. It is as simple as this. Layers do not exist in PDF 1.3.
Nill, null, nada, rien du tout, faic, tada. You may need to look up the last 2. They are gaelic.
Once that is known, or claimed, then the evidence is required. Do you really want to spend the time analysing the PDF LRM? I have. Not a casual read, but the data is there. Oddly, it's not as hard as one might imagine.
Failing that, I really have no issue answering a techy question or two. I taught for five years back in the day. It's kinda indellible.