I had finally sometime to work on PoDoFoBrowser again.
Most notably, I added finally a hex widget so that binary streams can be viewed directly from within PoDoFoBrowser:
Credits for the QHexView widget goes to Evan Teran.
Other changes include an implementation for Find and Replace in text streams and a new Goto Page feature. Both will safe you a lot of time when you have to work with content streams.
To try the changes, get PoDoFoBrowser from SVN.