iPad Trick: Save PDF Files for Offline Viewing
There is a Save Image feature in Safari for iPad, but there is no Save As PDF. What a bummer! Nonetheless, you can save PDF files for offline viewing using Good Reader for iPad. Here is how:
1. Copy the URL in Safari. 
2. Open Good Reader and locate the Enter URL button. 
3. Paste the URL and press OK. 
Voilà, your PDF file is ready for offline viewing. :)
