1, open the PS software, and open a picture, in the toolbar click on the crop button, or on the keyboard click on the C keyboard, can perform the crop command.

2, the work area at the top of the crop options, in the resolution of the option, select pixels / centimeter or select pixels / inches can be, in the blank area to fill in the resolution they need.

3, need to picture the height and width of the pixel size, calculate the need to enter the width and height of the size, I need to be here 800 * 600 pixels of the picture, so enter the width of 8, the height of 6, do not need to enter the back of the cm, cm is automatically generated.

4, in the position and size of the need to crop, drag the mouse, so that the pixels locked after the crop image, you can not arbitrary size.

5, after cropping, the implementation of the menu bar in the image | image size command.

6, the image size window pops up, you can see the image size of 800 pixels and 600 pixels.

Expanded

Composition

1, from the functional point of view, the software can be divided into image editing, image synthesis, calibration color and color effects of the function of the production part. Image editing is the basis of image processing, you can do a variety of transformations on the image such as zoom in, zoom out, rotate, tilt, mirror, perspective, etc.; can also be copied, remove the spots, repair, modify the image of the damage and so on.

2, image synthesis is a few images through the layer operation, the application of tools to synthesize a complete, convey a clear meaning of the image, which is the path of art design; the software provides drawing tools to make foreign images and creativity well integrated.

3, proofreading color tone can be convenient and fast to the image of the color of the light and dark, color cast adjustment and correction, but also in different colors to switch to meet the image in different areas such as web design, printing, multimedia and other aspects of the application.

4, special effects production in the software is mainly by the filters, channels and tools to complete the integrated application. Including the image of the special effects of creative and special effects word production, such as oil painting, relief, plaster painting, drawing and other commonly used traditional art skills can be completed by the software effects.

Components and functional use

1, the title bar

Located at the top of the main window, the far left is the Photoshop logo, the right are minimize, maximize / restore and close buttons. Property Bar (also known as the tool options bar). When a tool is selected, the property bar changes to the corresponding tool's property setting options, which can be changed accordingly.

2, the menu bar

Menu bar for the entire environment of all the windows to provide menu control, including: File, Edit, Image, Layer, Selection, Filter, View, Window, and Help nine items. Photoshop in the implementation of all the commands in two ways, one is the menu, and the second is the shortcut keys.

3, image editing window

The middle window is the image window, which is Photoshop's main workspace for displaying image files. Image window with its own title bar, provides the basic information to open the file, such as file name, zoom ratio, color mode and so on. If you open two images at the same time, you can switch between them by clicking on the image window. Image window switching can be done using Ctrl+Tab.

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