Students
Straighten scanned notes
Adjust a small tilt so lines are easier to follow. Inspect the page edges while choosing the angle.
A useful PDF task, made simple
Deskew PDF.
Straighten tilted scanned PDF pages automatically or with a chosen angle.
In Manual mode, rotate the page until the text lines up with the grid.
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Save your result or return to adjust the settings.
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PDF
How to deskew pdf
- 01
Choose your document
Upload one PDF from your device.
- 02
Set up the result
Choose automatic correction or adjust the angle visually. Uncheck Apply to all pages for individual page angles.
- 03
Download your file
Save the result and check it before sharing.
Deskew PDF
Straighten tilted PDF scans with the manual angle control, or try automatic deskew. Apply one angle to all pages or adjust them separately. The output keeps the page dimensions and saves the adjusted content as images at 150/200/300 DPI.
QUICK VIDEO TUTORIAL
How to straighten a skewed PDF
Bring slanted text back into line.
English narration
Watch the video
Practical ways to use this tool
Administration
Prepare scans for OCR
Straighten tilted paperwork before a separate recognition step. Deskew itself creates page images and does not add searchable text.
Office work
Fix different angles per page
Use individual settings for mixed scans, or share one angle throughout. Preview the result before sending the corrected PDF.
Features and controls
Straighten pages with a rotation control
Adjust the angle visually for one page or the whole document.
Manual angle and page-by-page control
Choose Manual and turn the angle control until text lines look level. Apply to all pages repeats the angle throughout; turn it off to correct pages independently. Navigate through the PDF and check the outer corners. The page size stays fixed, so rotating content can clip material close to an edge.
Try automatic correction
Let the converter estimate the tilt when a scan has clear text lines.
Automatic correction and review
Manual is the default. Choose Automatic when you want the tool to estimate page tilt. Pictures, sparse text, tables and mixed orientations can reduce accuracy. Review the output and use Manual when the automatic angle is unsuitable.
Save adjusted pages at 150/200/300 DPI
The new PDF contains rendered page images.
Image output and selectable text
This tool saves the adjusted pages as images in a new PDF at 150/200/300 DPI. Existing text becomes part of those images. It does not create a new searchable text layer or restore detail missing from the source. Use PDF OCR afterward if you need recognized text.
Review your finished PDF
Preview the result before downloading and sharing it.
Preview, download and revise
Select Start when the settings are ready. On the result screen, Preview opens the generated PDF and Download saves a separate copy. Back returns to the current workspace; Start over clears it for a new file. Review small text, page edges and page order in the finished copy. A new PDF does not preserve the validity of an existing digital signature.
Supported files & processing
- Input
- Output
Open one PDF up to 50 MB and 200 source pages. Protected files need an unlocked copy unless this tool explicitly offers password entry. Large or complex pages can require more memory or reach processing limits even when the file is within these limits.
Processing uses our servers. Source files, temporary files and results are deleted from our servers within 30 minutes after processing finishes. We do not share document contents with third parties or use them to train AI models.
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FAQ
A few useful answers
Know what to expect before you start.
Temporary server processingShould I deskew or rotate a sideways PDF?
Deskew corrects small angles in tilted scans and exports image-based pages at 150/200/300 DPI. Use Rotate PDF for 90, 180 or 270 degree orientation changes without rasterizing. Manual deskew keeps page dimensions, so content near edges may be clipped.
Can I straighten each scanned page by hand?
Choose Manual and turn the angle control until text lines look level. Apply to all pages repeats the angle throughout; turn it off to correct pages independently. Navigate through the PDF and check the outer corners. The page size stays fixed, so rotating content can clip material close to an edge.
Is automatic deskew always accurate?
Manual is the default. Choose Automatic when you want the tool to estimate page tilt. Pictures, sparse text, tables and mixed orientations can reduce accuracy. Review the output and use Manual when the automatic angle is unsuitable.
Will the output keep selectable text?
This tool saves the adjusted pages as images in a new PDF at 150/200/300 DPI. Existing text becomes part of those images. It does not create a new searchable text layer or restore detail missing from the source. Use PDF OCR afterward if you need recognized text.
What are the file and page limits?
Open one PDF up to 50 MB and 200 source pages. Protected files need an unlocked copy unless this tool explicitly offers password entry. Large or complex pages can require more memory or reach processing limits even when the file is within these limits.
Where is my document processed?
This tool uses our servers for processing. Your original file is not overwritten; the result is a separate download. Preview and review the result where available, and download the copy you need before starting over.
