You can find JEE Main exam question papers in PDF format through several reliable sources:

1. Official JEE Main Website: The National Testing Agency (NTA) often provides previous years' question papers on their official website.

2. Educational Websites: Websites like [NTA’s JEE Main] [Embibe] and [Byju's] often have downloadable PDFs of past question papers.

3. Online Forums and Communities :

Educational forums and student communities on platforms like [Pagalguy] sometimes share links to question papers.