In another thread, this relevant exchange between myself, Anne and Rene occurred on this very subject. Had I known, I would have posted here instead. Ms. Guo, if you are indeed listening, consider putting this one back...because, specifically with open Photoshop files, it can't be pulled off in Bridge. Jbeezer points out another major problem:

"There is no control over compression and it yields a much larger PDF as in over 5x for my previous example."

Here is the earlier exchange:

Anne said:
"And it isn't called "Automate->PDF Presentation" in CS4 either. It has been replaced by a multi-page PDF that you create from Bridge CS4's Output Panel and then edit in Acrobat Pro if you need to finesse transitions etc.."

I said:
I did find that in my hunt. It doesn't work anywhere near as quickly or as well as it did in PS CS3. Not even close. It can't deal with open PS documents (at least I couldn't find a way) and it can't be set to completely remove the "jpg'ing". I tried for a few hours to get it to output a decent PDF within Bridge and just gave up. Moving over to Acrobat Pro to "fix" pretty much negates the whole Bridge step. It's actually faster to completely skip Bridge and just make a PDF directly in Acrobat Pro.

There was no reason to remove this function at all. It wasn't broken and it didn't need fixing. Yet another reason to keep PS CS3 resident...particularly because the PS CS3 parameters actually does this trick (PDF from open PS images) faster and with better quality than Acrobat Pro does with saved/converted PDF files ...in one easy step. When you get right down to it, the function Automate>PDF Presentation wasn't moved over to Bridge. It was removed.

Rene said:
"For more info, see "Where did Extract & others features go?" <http://blogs.adobe.com/jnack/2008/10/where_did_extra.html>"

I said:
That's funny. There is no other information on Automate>PDF presentation in Nack's blog:

* Picture Package, Contact Sheet, Web Photo Gallery, and PDF Presentation have been replaced by the new Output module in Bridge CS4. Of these the first three are in the optional download package, while PDF Presentation no longer works in CS4.

* In CS4 we made some hard calls and retired a number of features. Some of these can be added back into CS4 (see Mac & Windows downloads) while others are gone for good."

"Gone for good" applies here.

JBeezer

Replied in the following topics

Missing menu items in CS4 - PDF Presentation