LuKreme wrote: >> DSC? Yes. .PNG? None that I've seen... > > Not specifically, but I, for example, convert photos I want to use for > Desktops to .png format, and I often don't rename them. If I email them > to someone they would match that pattern. I have 6 desktop images that > match DSC[0-90{4}\.png and about 5 more that would match a more generic > [:alpha:]{3}[0-9]{4}\.png > > I'm just saying, this has a real potential of catching real messages.
A tip: the PNG takes up considerably more disk space (and thus loading time) and you're not increasing any quality (since it was originally lossy). If you're editing it, keep the original high-res JPG saved in some more useful lossless format (like PSD or XCF) and export it back to JPG when done editing.