Instructions
Complete your collage then click "File" in the navigation bar of the program you are using.
Select "Save As" from the drop-down menu that will appear.
Select "JPEG" from the menu box, and select the quality setting you want for your collage. JPEGs can be saved at a quality setting from 1 to 12. To retain the most information, a setting between 9 and 12 will create a file that will be suitable for printing.
Name your collage and click "Save" to save and close your new collage.