Print to file without print screen?

I am trying to print coupons from websites like Coupons.com, smartsource.com, Redplum.com and target.com. Once you gather the coupons you would like to use and print, you click the print button and it takes you to the next screen. It never brings up the print screen. It never shows you the coupons or I would just screen capture. My goal is to save the coupons so that I can take them to work and print them out there. The work computers block me from downloading the coupon printers at work and so I can not print them. Is there any way to 'fake' my computer into thinking it is printing but actually saving the file so that I can pass it onto my work e-mail? It seems complicated and because it does not actually show the coupons, I can not figure it out.