The difference between pixel size and document size in PS

1, pixel size

Usually used to adjust the size of the picture displayed on the display. Menus: Image → image size. Shortcut key: Alt+ctrl+i.

First, at the same time, check the "Zoom Style", "constraint ratio", "fixed image pixel" 3 items;

Then, it is usually adjusted to the "width" standard.

2. Document Size

An adjustment to the size of a picture that is typically used for printing output. Menus: Image → image size. Shortcut key: Alt+ctrl+i.

First, at the same time, check the "Zoom Style", "constraint ratio", "fixed image pixel" 3 items;

Then, according to the output device needs, set the "Resolution" value (for the printer to print or wash pictures of pictures, usually recommended to set to 300 pixels/inch)

Finally, set the width or height according to the print requirement. (usually in "centimeter")

The above is the difference between the pixel size and document size in PS