Export to PDF with index bookmarks and unnumbered sections

Question

I want to export my .org file to pdf, with a table of contents. But I don't want the table of contents to be printed in the first page of the document. Rather I want the table of contents to be embedded in the pdf file as bookmars. For example, see the figure:

How do I do this?

Update:

Currently the first lines of my .org file look like this:

#+OPTIONS: num:nil
#+OPTIONS: toc:nil

If I remove the #+OPTIONS: num:nil option, I get the desired PDF index (thanks @NickD). But then the sections get automatic numbers which I want to remove.

Is there a way to get the PDF index, and also remove section numbering?

Answer 1

Here is how I got it working. This produces the PDF index, no table of contents in the document, and no section numbering.

#+OPTIONS: toc:nil
#+LATEX: \setcounter{secnumdepth}{0}   

Note that I am not using #+OPTIONS: num:nil, because for some reason this option breaks the PDF index. However #+LATEX: \setcounter{secnumdepth}{0} is a workaround to prevent section numbering.

Answer 2

I don't think you can get rid of section numbers with num:nil and still get the index. As I explained in the chat, num:nil produces starred sections which latex treats as unnumbered sections. But then it also fails to add them to the .aux file as \contentslines, so the PDF does not get any information that can be used to generate the index.