Dont buy
Not what I expected, i.e. to "save" an email as PDF you need to copy the message from the email application and then paste it into Save2PDF. Same when saving a web page in Safari (as alternative there is an option to insert a z in the URL..... huh?)
Apart from that you cant use the iPhone app in the iPad, you need to buy it again for the iPad
Tattenbach about
Save2PDF for iPhone, v2.2