You can also download a free PDF maker called PrimoPDF, that acts as a print driver.
All you have to do is to press CONTROL-P and select PrimoPDF as your printer, then click PRINT.
Here’s the CNet download link for it:
http://download.cnet.com/PrimoPDF/3000-10743_4-10264577.html?part=dl-10264577&subj=dl&tag=button
I use Cute PDF. Less overhead.
I LOVE PrimoPDF. It makes printing receipts from online payments so easy and so much easier than screen capture. Of course it’s more reliable to use screen capture when you want to show the url as ‘proof’.