!PPC is an Acorn RISC OS software application that is a FrontEnd for the GNU Indent Application (Pretty Prints C), and is available for free download.

After having downloaded and unzipped the !PPC Application, drag the application to a suitable directory on your hard disc. Double click on the !PPC icon to load it onto the icon bar.

Double click on a C file or drag it to the bar icon to enter its file name into the main 'SetUp' panel slot. Alternatively clicking on the bar icon brings up the main 'SetUp' panel and the C file can be dragged to this panel, or the file name can be typed manually into the slot at the top of this panel.

Select options from the 'SetUp' panel and then click on the 'Run' icon. After a while a pretty printed C Text file is offered for saving.

Additional Help is available from the bar icon menu, or by using the Acorn facility !Help, present in the 'Apps' directory.

Consult !ReadMe, within this application, for conditions of use.