Deskew the scanned page content

Question: Why does [Automatic] deskew not deskew the page?

Answer:

1. The page cannot be deskewed automatically when the deskew angle is greater than 20 degrees. First do a manual deskew and then an automatic deskew.

2. There is too little information or too many graphics on the page to deskew automatically. Deskew manually.

3. Due to the skew algorithm, texts that use non-Latin fonts (e.g. Chinese and Japanese) do not deskew automatically. Deskew manually.

Question: Why is content lost after a deskew at a large angle?

Answer: The content is rotated during the deskew. Content that is rotated beyond the page boundaries is lost permanently. Click [Undo] to recover the lost content.

Deskew the scanned page content

1. Select the scanned pages that you want to clean up. Click [Select] - [Scanned pages] to select all scanned and rasterised pages.

   • To select a page range: select a page in the structure view, press the <Shift> key, then select another page.

   • To select non-sequential pages: select a page in the structure view, press the <Ctrl> key, then select several non-sequential pages.

2. Click [Pages] - [Clean-up].

   • If required, rasterise the pages that are not recognised as scanned pages.

3. Click the [Deskew] tab.

4. Select the scanned pages that you want to deskew.

5. Select to deskew:

   • [Automatic]

     Deskew is done automatically by the application.

   • [Manual]

     You can define the deskew angle manually. You can use the mouse to measure the angle in the preview view with the angle tool. You can adjust the angle with the handles on each side of the line.

6. Click [Apply] to deskew the scanned page content.