Auto-Rotate Scanned PDF

Fix clearly sideways scanned PDF pages locally with best-effort content orientation detection, optional crop, and before-and-after preview.

Options

Best-effort local orientation detection for clearly sideways scanned page content.

Uncertain pages are left unchanged rather than guessed.

Optional crop trims borders after 90-degree rotation when page edges are clear.

Output is rebuilt as page images; run OCR PDF afterward when you need searchable text.

How to auto-rotate a scanned PDF

  1. Upload PDF — Upload a scanned PDF with sideways pages.
  2. Choose output — Choose color, grayscale, or black-and-white output.
  3. Adjust settings — Adjust quality, DPI, mild contrast, and border crop.
  4. Auto-rotate — Auto-rotate locally, compare the preview, and download the corrected copy.

FAQ

Are PDFs uploaded?
No. Rendering, orientation detection, preview, and export run in your browser.
Will uncertain pages rotate?
No. The tool rotates only confident sideways pages to avoid making correct pages worse.
Can it fix small tilt?
Use Deskew PDF for small angle correction. Auto-Rotate Scanned PDF focuses on 90-degree sideways pages.