Straighten scanned PDF pages
The sheet went into the scanner a little crooked and the background came out grey? This tool straightens scanned pages that are slightly rotated and can turn them grayscale or whiten the background with a black-and-white document filter. By default only pages without text are changed; the other pages stay as they are.
Drop a PDF here
You can also drop a file anywhere on this page ·
- Files are not uploaded
- No sign-up
- No ads, no watermark
How to Straighten scans
- 1
Open the scanned PDF
- 2
Choose how the picture is treated (as it is, grayscale or black-and-white document) and which pages to change
- 3
Save the straightened PDF
Highlights
Straightens crooked pages
Pages that were scanned slightly rotated are turned straight.
Whitens the background
The black-and-white document filter removes shadows and the paper tint, so paper is white and text is dark. Grayscale alone is also available.
Scanned pages only, by default
By default only pages without text are changed. Pages that have text stay as they are, and their text stays selectable.
FAQ
Why are only pages without text changed by default?
A page that is changed becomes an image, so its text could no longer be selected or copied. Scanned pages are images already and lose nothing; pages that have text are left alone by default.
Can it fix pages that are sideways or upside down?
This tool is for pages that are slightly rotated. For pages that are sideways or upside down, use “Rotate PDF”.