Straighten scanned pages
Measures the tilt on scanned pages and straightens them. Refuses pages that have a text layer.
Deskew measures how far each scanned page is tilted, using the fact that a document's text forms horizontal lines: it finds the angle at which those lines stack most sharply. Correcting a tilt means re-rendering the page as an image, which permanently removes its text layer, its annotations and its crisp type — so it only touches pages that have no text layer to lose, skips anything already straighter than a third of a degree, and tells you what it skipped and why. A born-digital PDF is not skewed, and the right answer for one is to leave it alone.
Works offline. Once this page has loaded, the tool never contacts the network again.
Nothing leaves your device — the document is processed locally in this browser.
Scanned pages only. Corrected pages become images. Tilts beyond 5° want Rotate instead.
This tool changes or removes content. It writes a new copy — the file you opened on disk is never modified — but check the result before you rely on it.
Typed into the workspace command bar, any of these opens this tool. They are the assistant's own routing examples, not a rewrite of them.
Also called: deskew · straighten pages · crooked scan · skewed pages · tilted scan