Django: How can i get the sections of pdf file and jump to them?
I`m not sure, that I understand you correctly, but if you talk about Named Destinations in PDF file you should:

get Named Destinations of PDF file with pyPdf library with "getNamedDestinations" method
open PDF file with nameddest parameter like "http://example.org/doc.pdf#nameddest=something"
I develop a simple site in django.
in this site the user has to upload a pdf file,
and then he can see it with tree of sections in the side.
The challenge is:
A. How can i read the file sections?
it could be in django, python, javascript or each another idea.
B. How can i jump to specific section when the user click on it?
I display the file with html object tag.
Thanks for any reply.