This will show how to save your project as different types of images.
Saving a Copy as PDF or AI
1. Go to "File" and click "Save a Copy"
2. Now click the drop-down menu and now you can select what file type you want and can change the name.
Saving as PNG or JPEG
1. Click "File", then "Export", then "Export as".
2. Now you can save it as A PNG or whatever file type you may need from the drop-down menu.
3. After you click that you will be given the option to use a background color or have it be transparent. You can also change the size where it says resolution.
Now you know how to save copies and save png's with or without backgrounds.