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Straightening Skewed Pages

This function allows you to straighten pages that were skewed when the original document was scanned.

Illustration of straightening skewed pages

Important

  • Straightening skewed documents is possible only if the original type is Image PDF (Icon illustration ). Additionally, automatic straightening is possible only if the document’s color mode is black and white (1 bit)(Icon illustration ).

  • If you perform other edits on a document that has been straightened and then perform straightening again, the image quality might deteriorate. (If you are only straightening a document, the image quality will not deteriorate no matter how many times you perform straightening.)

This function can be performed using the on-screen items indicated in the following illustration.

Note that this explanation outlines general use of the settings area. For details about a specific setting, see the on-screen balloon help that appears when you click the Icon illustration button.

Application screen numbered callout illustration

  1. Icon illustration , the [Deskew] button

    Click this to adjust the image’s skew.

  2. Settings area

    When you click Icon illustration , the [Deskew] button, the settings for adjusting the degree of the document's skew will appear here.

    In the thumbnail area, select the page that you want to de-skew, specify each setting, and then click [Apply].

Note

  • If you are straightening the skew manually, reference lines are displayed on the page. You can move these reference lines with the mouse. Also, dragging a point ( Icon illustration ) on the reference line lets you freely correct the skew angle.

    Application screen illustration