Ncurses based hex editor with vi/vim-like interface. Features include large file support, search highlight, multiple undo/redo, visual select, cut/paste, blob coloring, file tabs, and much more.
EnDecode is a tool to decode/decompress parts of a binary file like PDF. If using PDF then stream to endstream data can be decompressed. You select from start to end of the part you want to decode and it will decode the data.