How to set the property of file

1. When create a new file, we can set the property of the file like set the width and the height by pixels, inches, cm point picas, and the columns.

   

2. Set the resolution of the file by pixel/inch or pixel/cm

   

3. Set the color mode like bitmap, grayscale, RGB color, CMYK color, and lab color.

   

4. Set the contents of the file like white, background color, and transparent. You can see the image size is 1.38Mb at the dialog box.