Also, PNGPress only supports png files and lets you set a compression level in ... which also supports JPEG and GIF files. Do you know any other Mac app to optimize images? Feel free to share it in ...

You can drag these in until you are happy with the cropped image. Once you are satisfied with your crop click Crop. Mac screenshots are saved as a PNG file by default. The format has its benefits ...

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