This program makes it easy to do all that. You need to turn those pictures before you place them into a document or a web page. You select an area and the rest disappears. Photos on disks are labeled simply with numbers. To make your job easier, you need to give each photo a unique name before you add it to you saved files or web page.
File formats are important to the computer and tell the computer how to save the picture.
Some are very large and save every little speck of color and detail. Some are very small because they don't save every detail. JPG files are somewhere in the middle of the size pack. You can explore the difference in formats later on. This software makes it really easy to make a computer slide show for your class.