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You can change the input size to a different setting to get different scanning dimensions depending on the size of your line drawing/picture. To see the dimensions of the input size, click the "+" icon in the Input Size Tab. The drop down menu will display the dimensions.
DO NOT MANUALLY INPUT DIMENSIONS! Instead, choose a different "Input Size" from the Input Size Drop Down Menu. It's best to choose one of the following: "Arch A" through "Arch E" or "ISO A0 through ISO A6."
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