A bit complicated – like much else on Windows… sorry, couldn’t help myself :)
But the important part is that it’s *possible* to add as PDF files without too much hassle.
I never clip as PDF on my Mac though, I just click the elephant icon in my firefox/safari toolbar and the page – or the text I selected – goes into Evernote. Usually the formatting isn’t too important to me, I’m more about the content.
But in some cases I “print” a PDF file and drag that one into Evernote.
PS: May I suggest you add the WordPress plugin “Subscribe To Comments”, so it’s possible for commentors to get an e-mail if/when you reply to comments or if somebody else comments on your posts :)