Creat image

 

Choose File→New.

1. Or press Ctrl+N (Command+N on the Mac). 
2. Type a name for the new file.
   If you don’t specify a name, Photoshop creates one for you. 
3. In the New dialog box, select a preset image category from the Preset pop-up menu.
   Choose from common categories such as U.S. Paper, Photo, web, Mobile and Devices, and Film and Video.
   In Version CS6, there are now14 (CS5 sported only five) different presets in the Mobile and Devices category to accommodate creating images for the iPhone, iPad, and other mobile devices.
   The Clipboard provides the size that corresponds with an image that you copied. Here are a couple of other preset tips: 
4. 1. If you selected an image category from the Preset menu in Step 4, select your desired preset Size for that category.
   2. Or, if you chose Custom in Step 4, enter the width and height of your image manually by typing the width and height of your choice in the text boxes.