What does deskewing a PDF do?

Scanned pages often come out slightly rotated because the paper wasn't perfectly square on the scanner glass. Deskewing detects that tilt on every page and rotates each one back so the text lines run straight.

What is the difference between deskew and auto-rotate?

Deskew corrects small tilts of a few degrees. Auto-rotate fixes pages that were scanned in entirely the wrong orientation — sideways or upside down. Enable the “Also auto-rotate pages” option to apply both in one pass.

Will deskewing change the text in my PDF?

No. The page images are rotated, but nothing is re-typed or re-flowed. If you also want the document to become searchable, run it through our OCR PDF tool afterwards.

Is my file kept on your servers?

Files are processed on our servers and automatically deleted within 1 hour — or immediately if you delete the task yourself. We never read, share, or train on your documents.

Processado nos nossos servidores. Cada ficheiro é apagado automaticamente em 1 hora.

Deskew PDF

Straighten crooked or tilted scans automatically. Every page is analysed and rotated back to true.

Select PDF file

or drop a PDF here

Seguro. Privado. Sob o seu controlo.

How to straighten a scanned PDF

Select the crooked or tilted PDF — typically a scan or a photo-based document.
Optionally enable “Also auto-rotate pages” to fix pages scanned sideways or upside down.
Click “Deskew PDF” and download the straightened file. Pages are auto-deleted within 1 hour.

Frequently asked questions

What does deskewing a PDF do?: Scanned pages often come out slightly rotated because the paper wasn't perfectly square on the scanner glass. Deskewing detects that tilt on every page and rotates each one back so the text lines run straight.
What is the difference between deskew and auto-rotate?: Deskew corrects small tilts of a few degrees. Auto-rotate fixes pages that were scanned in entirely the wrong orientation — sideways or upside down. Enable the “Also auto-rotate pages” option to apply both in one pass.
Will deskewing change the text in my PDF?: No. The page images are rotated, but nothing is re-typed or re-flowed. If you also want the document to become searchable, run it through our OCR PDF tool afterwards.
Is my file kept on your servers?: Files are processed on our servers and automatically deleted within 1 hour — or immediately if you delete the task yourself. We never read, share, or train on your documents.

Deskew PDF

How to straighten a scanned PDF

Frequently asked questions

Related Organize tools

Deskew PDF

How to straighten a scanned PDF

Frequently asked questions

Related Organize tools