Cannot print pdf file in Ububtu 12.04

I have two Epson printers (Stylus 1290 and XP-610) neither of which will print pdf output fro Royal Mail. I have followed the threads on this subject very carefully with out success although both printers print everything else (the 1290 even prints on roll paper). This problem has been going on for some time - surely there is a simple, straightforward method of printing these specific types of pdf files?

Which application(s) are you trying to print them from ?

have you tried opening them in LibreOffice and printing them from there ?