Once your image is visible in the scanning interface, select the area of the image that you would like to acquire by drawing a box around the desired area with the mouse. Adjust the size of the box by placing the cursor on any of the box's borders, holding down the mouse button and moving to resize. If you wish to resize the image by affecting scale, find this option in the scanning interface and enter the desired percentage. The physical size that you choose for your image will affect file size-the larger the size of the image, the larger the file size. Select the image resolution for your scan.
Image resolution affects file size-the greater the resolution, the larger the file size.
Select the color depth for your scan. These options refer to the amount of colors that will be recognized and displayed in the image you are about to acquire. Color depth affects file size-the greater the color depth, the larger the file size. Once all settings have been confirmed import the image, by clicking on the Scan button. Once the image has been acquired it will appear in an untitled, unsaved Photoshop window.