I've found the the adobe viewer is the best for viewing WO's, pick slips and boms generated by evo.
 
Some viewers don't let me properly select part number text lines I may want to copy out to check the status of, or call up the photo or links.  Adobe viewer seems flawless in this respect..
 
CutePDF seems to do the best job when printing pick slips with photos but for test runs of boms with links I like PDFCreator as it lets the PDF generation of linked documents proceed without asking for file name confirmation or anything else.
 
bullzip PDF will do this too but then asks if I want to open the PDF (anyone know how to turn that off ?) so its no good for printing a bom with lots of links.
 
So what are you using to make and view your PDF's ?

will it auto print or will it ask for a file name when printing linked documents ?

We don't use linked documents, but the program usually asks for file names.