[ale] is there an open source program permitting creating/editing of PDF files ?

[Brian Pitts]

Jim Philips wrote:
> The key word here is "unnoticeable". Full Adobe Acrobat will let you add
> highlights and arrows and all kinds of drawn-on doodads. Is there an
> open source tool that will let you do that?
> 

Sure. Okular and Xournal come to mind. Instead of editing the pdf
directly, they save the annotations in a separate file.
-- 
All the best,
Brian Pitts