Re-sizing Images
Your website only has a certain amount of space. If your going to have a lot of images they are going to eat up that space, resulting in not allowing you to add all that you want and they are also going slow your site down, which can result in loss of traffic to your site.
Creating Zipped Files
Most likely the only time that you’ll need Zipped files is for uploading a batch of images to your gallery plugin.
Zipping is the act of packaging a set of files into a single file or archive that is called a zip file.
