Does PDFCreator have adware or bloatware?
No, PDFCreator doesn't have adware or bloatware, but it will display ads from time to time since you're using the free version. This is the policy implemented by the developers. To remove ads, the Plus version needs to be purchased. If you want ads to be blocked, install an antivirus and block Internet communication for PDFCreator.
Buy application: http://www.pdfforge.org/pdfcreator/plus
Antivirus database: http://software.informer.com/search/antivirus