Can I add "tags" to pdfs?
Hi, Is there a way to "tag" a pdf so that I can find what I need easily? I have hundreds and hundreds of documents I have created for teaching and I would like to be able to tag them in various ways as to locate exactly what I need and others documents that are similar. Is there a way to do this with pdf preview? If not, could you recommend how I could do this?
Thanks
MacBook Pro, Mac OS X (10.7.5)