Thanks - I didn't even know it was an option. Apparently it is on Lion and above (which is 10.7 for those of us who can't keep their cat's straight). Here's a

Thanks - I didn't even know it was an option. Apparently it is on Lion and above (which is 10.7 for those of us who can't keep their cat's straight). Here's a link to how it works: http://howto.cnet.com/8301-11310_39-20082711-285/how-to-use-preview-in-os-x-lion-to-digitally-sign-documents/ http://howto.cnet.com/8301-11310_39-20082711-285/how-to-use-...