Sometimes, when a paper plan is scanned and stored electronically, the page is off the horizontal axis slightly and images will look crooked on the Image tab. You can fix this using the Deskew function.
(The example below is extremely skewed to emphasize the functionality - most images are only off a degree or two.)
Click Image > Deskew - the Deskew Image dialog displays, which includes directions for deskewing the image.
Find a known horizontal line on your drawing (a long line that should be horizontal)
Click on the line and drag to trace over it from left to right
The program adjusts the drawing level to this line (the image file is not altered, only the way On-Screen Takeoff is displaying it is changed).
It's best to use the longest horizontal line on your plan as possible for the deskew to be accurate.
Note
Deskewing a base image stores a setting in the database that tells the program to make the adjustment to the display of the base image. The base image is not altered.
However, adjusting an overlay image changes the actual overlay image file.
 Rotating and Flipping Plans | Converting Image Files (Drawings) to TIFF Format  |
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