What is Deskew PDF and how does it work?

Deskew PDF is a free online tool from HuntPDF. Straighten crooked scans automatically. You upload a file, the work happens on our servers, and you download the result. There is nothing to install and no account to create.

How do I use Deskew PDF online?

Upload your file using the box above — drag it in, browse for it, or bring it in from your cloud storage. A preview appears so you can check you've picked the right file. Run Deskew PDF, then download the result. You can rename it before you save it.

Is my file secure when I use Deskew PDF?

Yes. The file you send to Deskew PDF travels over an encrypted HTTPS connection and is processed automatically on our servers. It is never made public, never shared with anyone, and nobody reads it.

Does HuntPDF store my files after Deskew PDF has run?

No. Your upload is deleted the moment Deskew PDF finishes with it, and the file it produces is removed as soon as you have downloaded it, or when you upload another file, or when you close the page. Nothing is kept, and nothing is used to train anything.

Will the original quality and formatting be maintained?

Yes. Deskew PDF is built to leave your content exactly as it is — only the change you asked for is applied. Nothing else about the file is altered or re-compressed.

Can I use Deskew PDF on mobile?

Yes. Deskew PDF works in any modern browser on phones and tablets — iPhone, iPad or Android — with nothing to install. You can upload straight from your device or from your cloud storage.

Can I rename my file before downloading it from Deskew PDF?

Yes. The file Deskew PDF gives you back keeps the name of the file you uploaded by default. If you'd rather call it something else, edit the name in the field next to the download button before you save it.

Do I need to install any software to use Deskew PDF?

No. There is nothing to download, install or sign up for — Deskew PDF is used from your browser and does the work on our servers, so it behaves the same on Windows, macOS, Linux, Android and iOS.

How long does Deskew PDF take?

Most files are finished in a few seconds. A large or page-heavy file takes a little longer, because Deskew PDF runs on our servers rather than on your device — but you won't be waiting around. You can upload files up to 250MB.

Is Deskew PDF free to use?

Yes. Deskew PDF is free, with no signup, no watermark on the result and no daily limit for normal use.

What does Deskew PDF do?

It measures the angle of each page and rotates the tilted ones back to level, then gives you the corrected PDF.

How much tilt can Deskew PDF fix?

It's made for the small angles you get from hand-fed scanners and phone photos, a few degrees either way.

What's the difference between Only tilted pages and Every page?

Only tilted pages leaves straight pages untouched. Every page redraws all of them, catching very small tilts too.

Should I deskew before OCR?

Yes. Straight lines of text are recognised more reliably, so deskew first and then run OCR PDF.

What if all my pages are already straight?

The tool tells you nothing needed changing, and the pages stay as they were.

Is this the same as Rotate PDF?

No. Rotate PDF turns pages by 90 or 180 degrees. Deskew fixes small angles.

Deskew PDF Online – Free, No Watermark, No Signup

Drop your file on the target

Several files · up to 260 MB each · deleted after processing

Drop your file here

Choose file

Fixes pages scanned at an angle
Straight pages stay untouched
Up to 260 MB per file

Processed on our secure servers over HTTPS. Your files are deleted automatically after processing.

Deskew PDF straightens pages that were scanned or photographed at a slight angle, so lines of text run level again. It measures each page and only changes the ones that are actually tilted.

How to use Deskew PDF

Drop the PDF on the page or choose it from Google Drive, Dropbox or OneDrive. Choose Only tilted pages (the default) or Every page, which redraws all pages to fix even tiny tilts. Press Straighten pages. The result tells you how many pages were straightened. Download the file, or press 'Continue with this file' to run OCR on it.

Who uses Deskew PDF

An office clerk feeds a pile of invoices through a sheet-fed scanner and half come out crooked. A student photographs library pages on a phone. An archivist digitises old typed letters. In each case the pages are readable but look careless, and tilted text is harder for OCR.

Deskew before OCR

Text recognition works best on level lines, so straightening a scan first usually gives cleaner OCR results. If your PDF already has real text, most pages will be straight, and with Only tilted pages any page that doesn't need fixing keeps its text exactly as it is.

Frequently asked questions

What does Deskew PDF do?: It measures the angle of each page and rotates the tilted ones back to level, then gives you the corrected PDF.
How much tilt can Deskew PDF fix?: It's made for the small angles you get from hand-fed scanners and phone photos, a few degrees either way.
What's the difference between Only tilted pages and Every page?: Only tilted pages leaves straight pages untouched. Every page redraws all of them, catching very small tilts too.
Should I deskew before OCR?: Yes. Straight lines of text are recognised more reliably, so deskew first and then run OCR PDF.
What if all my pages are already straight?: The tool tells you nothing needed changing, and the pages stay as they were.
Is this the same as Rotate PDF?: No. Rotate PDF turns pages by 90 or 180 degrees. Deskew fixes small angles.