Another maintenance post. Another issue that can show itself in a few ways.
- If you are unable to get Illustrator to boot and see that Illustrator is crashing as it shows “loading fonts”.
- If your font list becomes filled with font names that look like they are combinations of other font names.
- Other weirdness with the behavior of your fonts.
The font caches are temp files that both your computer and Illustrator cooks up to keep track of what fonts are active and where they are located. There is no danger in deleting them, they will be recreated the next time you restart Illustrator in the case of the application level caches or by the finder in the case of the system level caches. Office also creates its own, which behave the same way, but, well, for Office.
I use some of these (particularly the round one corner script) daily. Very helpful to have around. If you poke around, he’s also working on making some of them into live effects (so you could keep them editable) but so far he’s only able to do so for CS3 on the WIndows platform.