Opening files in Photoshop is easy: the command File>Open can be used to open just about any type of graphics file.

Once you've opened a file and edited it, you can save your file in a number of different formats. To save the file in its current format, use File>Save. If you want to save it as a different type, you can use either File>Save As or File>Save A Copy. We'll discuss saving later in the tutorial; for now it's OK to save your images in their original format.

Creating new files in Photoshop is just as easy: go to File>New and set the height, width, and resolution of the new file in the dialogue box.