Also, PNGPress only supports png files and lets you set a compression level in the Preferences (from ... So if you ask me, I’ll use ImageOptim from now on, which also supports JPEG and GIF files. Do ...

needing to convert a JPEG to a PNG or vice versa ... potential life on Mars Step 1:Find the image you want to convert. This can be anywhere on your Mac?Desktop, Downloads, or Documents.

Most web browsers and photo viewers can open this common image file format A PNG file is a Portable Network Graphics file.