Actually many folks, even techies, were burned by PDF Creator's toolbar crap. The reasons are complex, apparently some silent installs -- and other problems -- foisted the crap even upon those who would normally just say no. And made worse by being an open source project. And little from the developers came forth.
You can read about it on pdffforge, sourceforge and various blogs.
Automatic Yahoo toolbar install? Bye PDFcreatorhttp://www.pdfforge.org/node/2598
pdfforge Toolbar - browser hijack to vmn.nethttp://www.pdfforge.org/node/2540
Also threads 2406, 2423 and 2626 and 2659, maybe more.
Tracker: Bugs - 5 Remove trojan from download! - ID: 2607106 http://sourceforge.n...7796&atid=485457
5 Malware and Yahoo toolbar and malwa installed no matter what - ID: 2719254 http://sourceforge.n...7796&atid=485457
There is more, but that will give you some idea why PDF Creator is no longer of interest to many, alternatives are sought, whether CutePDF or a future open source or a commercial solid product.
SourceForge-hosted PDFCreator Trojan/Toolbar Warninghttp://www.mularien....ojantoolbar-warning/
Also on the Mozillazine forum and other blogs and sites you will find discussion, the article above, back in March, was one of the best. (I learned about all this when GiveawayoftheDay did NovaPDFLite.)
By comparison Ccleaner did not get a free pass. e.g Softpedia would properly label them as adware. At least their crapware was much clearer than Comodo - easier to avoid -and not done with the Comodo specialty of legal intimidation and bluster. Nor with ultra-deceptive install wording and structure (again Comodo). And CCleaner is not a security app or an open source app, both of which are understandably held to an especially high standard. I never would have thought I could go to SourceForge and get crapware foisted with my open source. Thus lot of folks who might continue with Ccleaner (with some concern) find Comodo and PDF Creator software non grata -- and are less trusting of SourceForge.
Note: I believe all these being discussed were "opt-out". Generally speaking "opt-in" is far less likely to raise hackles and major concerns. Yet even there, on "opt-in" ... factors are:
how crappy is the add-on; who is doing it and why; how much finagling is there to try to make the "opt-in" attractive by falsely making it look appropriate and necessary. And how much was missed in the process (e.g. silent installs on a network) so that some may get taken unawares anyway.
The other day I was at a client and had to do some stuff on a PC loaded with crapware toolbars, including the infamous crawler toolbar. What a disaster. Those of us on forums like this should be aware of how these mercantile crap-items prey on those who do not have a large amount of puter savvy. Those are the marks for Comodo and PDF Creator and others. Much better to use a real freeware or buy a good product than try to wink at this stuff.