#graphics
I'll second the comment about getting ADPro (Art Department Professional)
by ASDG. It will convert between most other computer formats and all amiga
formats. Will do other image processing as well.
PCX is a IBM format; most IBM/clone graphics packages will save/load in
that format. It supports varying degrees of resolution and color, some of
which are directly transferable to IFF, some of which are not (but ADPro
will scale and dither them so that they are usable in any case).
I don't know the .PIC format…. maybe someone else does….