PDF file bookmarking

I need my PDF file suitably bookmarked. The document is less than 50 pages and already contains a table of contents. Your task will be to ensure that section headers link to the corresponding parts of the document.

Ideal Skills:
- Proficiency in PDF editing software
- Attention to detail
- Ability to follow instructions accurately

Experience:
- Prior experience in document formatting or editing
- Familiarity with creating bookmarks in PDF files