iPad Best Ipad app for Architects - Marking up drawings?

[whyrichard]

Hello,

Finally getting a new ipad, I was wondering if you all could suggest the best ipad app for architects and designers to markup drawings and photographs?

This entails basic drawing on a PDF, with pencil or vectors, adding notes, and turning it around via email.

Any suggestions for this?

Thank you,
Richard

 

[Hicks.]

PDF Expert is pretty versatile.

 

[GerritV]

Bluebeam Revu is worth checking IMHO (I'm an architect myself)