enhancement for export to PDF: add page numbers and a index of content

```
Platform:
Mac 

It would be very useful if page numbers and an index of content (also with the 
pagen umbers) were added to the exported pdf. This would help to find 
information much quicker in large pdf documents.

```

Original issue reported on code.google.com by `matthias...@gmail.com` on 10 Jan 2013 at 12:31
