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Edge Detection & Filters

After capture, Falcon PDF straightens and cleans up your scan.

Manual corner adjustmentMobile

Edge detection & cropping​

  • Automatic quadrilateral detection finds the page.
  • Adjust corners manually with a magnifier for precision.
  • Re-crop after capture at any time.
  • Perspective correction (deskew) flattens angled shots.

Crop & rotate​

  • Free crop with an optional aspect-ratio lock.
  • 90° rotation in either direction.
  • Fine rotation for slightly tilted scans.

Filters​

Scan filtersMobile
FilterUse case
AutoAdaptive contrast based on content
Black & WhiteHigh-contrast for text documents
GrayscalePhotos and mixed content
ColorPreserve original colors
MagicAI-enhanced cleanup