Edit PDF brochures

I have product catalogues of my suppliers which i want to be edited. Basically the contact information of the supplier needs to be replaced with our contact information (logo / name / contact details).

There are 3 PDF's

PDF 1:
- Change contact information on 2 pages

PDF 2:
- Change footer text
- Change contact information on 1 page

PDF 3:
- Delete 5 pages
- Change contact information on 1 page