Changing the Compression Quality of an image when downloading an image resource allows you to reduce a file size with little degradation to the quality of the image. To retain the highest level of quality, however, it is recommended to keep to the default setting: Maximum 100%.
Designers and advanced users can also select a Compression Type which lets you look at ways to reduce your image size while lessening the chance of any alteration to the quality.
Why do I need to Compress Images?
Compressing images can be useful when you have restrictions on a file size. For example: specification limitations when uploading an image to social media or a website.
Another example may be for use on your own websites, as images with smaller file size may assist in faster load times for end users.
It is recommended that users not already familiar with compression techniques leave the Compression Quality field in the default setting: No Compression.
What are the standard compression types?
A Lossless Compression looks at ways to make your image smaller with minimal impact to its accuracy and image integrity.
Lossy Compression can help to greatly reduce file size but with some impact to the image quality.
If unfamiliar with Compression techniques, it is recommended you leave these settings to the default No Compression option when downloading your images.