Will text quality be affected?

For rotations at multiples of 90 degrees, no quality loss occurs. For other angles, the tool rounds to the nearest degree and maintains good quality.

Can I deskew specific pages only?

The tool analyzes all pages but only corrects those with detected skew above the sensitivity threshold. Pages with minimal skew are left unchanged.

What is the sensitivity threshold?

Values 1-10 correct obvious tilts only, 11-20 detect moderate skew, and 21-30 catch subtle angles. Default is 10 for balanced detection.

How long does processing take?

Processing time depends on file size and DPI. 150 DPI (default) provides good balance between speed and accuracy. Higher DPI is more accurate but slower.

Deskew PDF

Automatically straighten scanned or tilted PDF pages. Fix skewed documents with precision angle detection.

Optimizare și Reparare

Încărcați fișiere PDF scanate

Trageți și plasați fișiere PDF aici. Puteți procesa până la 10 fișiere simultan.

Max files: 10

Despre acest instrument

Deskew PDF automatically detects and corrects tilted or skewed pages in your PDF documents using advanced projection profile variance analysis. This is essential for scanned documents that were fed into the scanner at an angle.

The tool analyzes the text and content alignment at different angles to find the optimal rotation, then applies the correction. You can adjust the sensitivity threshold (1-30) and DPI settings (72-300) for optimal results.

All processing happens locally in your browser using WebAssembly technology, ensuring your documents remain private and secure.

Cum se utilizează

Upload Your PDF
Drag and drop your scanned PDF file or click to select.
Configure Settings
Adjust threshold sensitivity and DPI if needed for better detection.
Process and Download
Click Deskew to straighten pages and download the corrected PDF.

Cazuri de utilizare

Scanned Documents

Fix pages that were scanned at an angle from document feeders.

Mobile Scans

Correct tilted photos of documents taken with smartphones.

Archive Restoration

Straighten old scanned archives for better readability.

Întrebări frecvente

The tool uses projection profile variance analysis to detect skew angles up to ±10 degrees with high accuracy. It automatically skips pages with angles less than 0.3 degrees.