How can I highlight PDFs?
Is there a software like Mac's default viewer, that allows you to annotate and highlight PDF documents?
Thanks in advance, Marco
"Xournal supports annotation of PDF files through the Poppler library; PDF files, much like paper styles, are loaded as an immutable background image."
Okular has support for highlighting and annotating PDF documents. Also see http://okular.kde.org/faq.php#HowcanIannotateadocumentandsendittoafriendcollegueetc