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Two methods are available to erase written errors or content as follows:
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Fist/hand back erasing: corresponding erase shape is a round with diameter 100pt.
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Spot erasing: Click to clear wrong or unnecessary content. Click and hold the icon
for two seconds to set the size of eraser (S 10pt/M 30pt/L 50pt), it would be shown
by the icon, as shown in the following figure.
In annotation mode, click to save the current image as a picture. Up to 50 screenshots
screenshots can be created. Click and hold the icon for two seconds to show the pop-
up windows to make users to choose if they want to save the screenshot automatically
when they leave the annotation mode, as shown in following figure.
Eraser
Screenshot
