Hi there!
It would be amazing to have the structure of Mellel documents (basically the autotitles) replicated as bookmarks in exported PDF documents. Currently I am writing my phd thesis, which has now reached about 200 pages and a huge amount of autotitles. The main distribution for this kind of work is providing a download of the pdf for reading on-screen (or print). For such use cases, PDF bookmarks that replicate the document structure are very helpful.
For more examples that illustrate what I am seeking for, as well as some technical documentation that illustrates the necessary PDF source code, see: http://www.w3.org/TR/WCAG20-TECHS/PDF2.html
Feature request: Structure as bookmarks in PDF
Moderators: Eyal Redler, redlers, Ori Redler