Who Is Hosting This provided a nice infographic that I wanted to pass along and share. All credit should go to them but I see it as a valuable resource and a good post that I feel my readers would entertain and gain knowledge from. There is always a consistent battle of what file type to use to make sure when you are compressing an image that you won't loose too much of the quality of your image.
File size is equally important for your own server and certainly keeping the overall size of your email marketing email down to appropriate levels.
When to Use JPG
Use JPG for still images, real-world images, complex coloring, shading of light and dark. Consider using a good compressing tool like JPG Mini or CompressJPG.com to reduce the file size to save space on your server.
When to Use PNG
Use PNG for things like web images such as logos that involve transparency and fading, images in the middle of editing process, and complex images like photographs if file size isn't an issue. You can still crunch and condense a PNG file just like JPG so keep that in mind.
When to Use GIF
Use GIF for web images with few colors, small icons (favicons), animations, and simple images. Nice thing here is compression won't loss quality.
Source: WhoIsHostingThis.com
Dynamic, high-energy executive with history of performance-oriented leadership to e-commerce sales and marketing within the online marketing and advertising industry. MichaelStults.com is where I share my thoughts on different marketing methods, wordpress, leadership, and various topics that I feel inspired to write about. Please take time to learn more about Rare Disease at www.BriParDun.com