Epson Expression 636 User Manual - TWAIN 32 - Page 47

As you modify your selection area or other image settings, you see the file size of the image change in the Target field. The Target Width and Height values change as well. You can also type new values in the Target Width and Height fields to specify the size of the output image. To keep specific values in the Target Width and Height fields, select the Lock icon. Click the Lock icon once to lock the values in place; the Lock icon shows a closed lock. Click it again to unlock the values. Note: t Some applications convert the image to full 24-bit data, so the actual size of the image may be larger than the value displayed in the Target field. t The image size settings are closely related to the Resolution and Scale settings. If you change them arbitrarily, the resulting image may not be what you expected. Setting the image scale The Scale value (in the Target area) displays the amount by which an image is enlarged or reduced during a scan. To change this value, move the slide bar, click the left or right arrow to change the image size in 1% increments, or type the value you want into the % field. t Note: If you increase the Scale size, the Target value also increases to indicate a larger file size. You can use the Lock icon to keep the Scale value constant. Click the Lock icon once to lock the value; the icon shows a closed lock. Click it again to unlock the value. Capturing Images From Within Applications 3-19