Ctrl+N = NEW: This option is used to create a new Photoshop document and explaining Document Properties like Default Photoshop Size , International Paper | Photo, Web, Film & Video and Mobile Devices Properties
Ctrl+O = OPEN: The second command given in the File Menu is referred as Open. This command is used to open a image and saved documents files in Photoshop
OPEN AS: This command option given in the File Menu is referred as Open As. This command is used to open a saved documents files in Photoshop
BROWSE: Browse is the third option that is given in the File Menu. This is an alternative option for searching and opening required image files in Photoshop.
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