Commodore 64 and 128 Desktop Publishing (DTP) program.
This program was one of the most amazing pieces of software ever made for C64. It was actually so good DTP program that it competed with Amiga DTP programs, which is quite of an achievement!
Pagefox came on a module that had 2 megabytes (IIRC) of extra RAM to hold the pages to be edited and printed out.
Pagefox's predecessor Printfox came on floppies and could only edit a part of page at time...
Oh, and Pagefox had a cute mascot, too =)