For the tiny fraction of PICers (according to Microchip) that use Macs,
Tropic Systems makes a package called Electronic Symbol Library that works
with Canvas or MacDraw. It has the complete set of IEEE 315 and 315A
symbols. Each symbol is a separately editable object. Makes very nice
looking schematics. I think it cost me about $75 five years ago.

Their address is:

Tropic Systems
12319 SW 132 Ct., 2nd Fl.
Miami FL 33186
305-251-7644 voice
305-251-9931 fax

I don't own stock; just a satisfied customer.

Reg Neale