People who run vibrant communities on WordPress have to deal with large file uploads all the time. Not everyone who uploads files online makes sure those files are web-friendly. Files that are too large can slow your site down and drive your visitors away. Imsanity is a simple tool that lets you gain control of the files uploaded to your site. You can control the dimensions and quality of those files.
Imsanity takes care of auto-scaling for you and your community members. It lets you define maximum width and height for your images. You can also define JPG image quality for your photos. Imsanity can handle image files too. It can convert BMP files to JPG quickly.
Imsanity does not require you to do a whole lot. Just enable it, and you are set. If you are tired of having to rescale images on your site manually, Imsanity is worth checking out.