I've tried many of these, and after living through crashes, black pdfs and other annoyances that will keep me from doing a mini-review , I have settled on these two as "best of breed"
PDF995 (Shareware, unrestricted, US $9.95)http://www.pdf995.com
This is what I recommend for folks who need to make pdf's from their CAD software so I can print it for them or for sending to others. Dead simple to set up and use, all paper sizes are included as well as space for custom sizes. It's even free to use unrestricted as long as you don't mind popup ads for, um, themselves. And fer pete's sake, it's only 10 bucks minus a nickel, jeez.
PDFCreator (Freeware, Open Source)http://sourceforge.n...projects/pdfcreator/
My personal favorite. Lots of options including printing to formats other than PDF, lots of paper and screen sizes to choose from. Requires installing Ghostscript (included in some of the PDFCreator downloads). The amount of options and the fact that it requires installing a 3rd-party postscript library may make it a bit daunting for some folks, but that's how I like it; nice and techy-like.
For my suite of PDF mightyness, I use PDFTK (mentioned above), PDF Blender
. So there.