Enhance scanned documents

For scans that are already straight

This page is for images that are already cropped to the page: output from a flatbed scanner, a multifunction printer, or a scanning app that straightened the photo but left it looking grey. There are no corners to set; you choose a filter and apply it to the whole batch.

If your image is a photo of a page lying on a desk, with the table visible around it, use the document scanner first. It finds the page and flattens the perspective.

What each filter does

• Enhance (default): lifts the paper towards white and strengthens text while keeping colour. The safe first choice.
• Grayscale: removes colour casts, such as yellowed paper or the blue tint of fluorescent light.
• B&W: pure black and white. Crisp and very small for typed text; can break up light handwriting.
• High contrast: recovers faint pencil and light print.
• Receipt and Whiteboard: tuned for thermal paper and for whiteboard photos respectively.

Glare and shiny paper

The Glare reduce slider (0 to 100) tones down very bright patches, such as light reflecting off glossy paper or laminated pages. It is applied before the filter. Start around 30; high values can make white paper look slightly grey. For photos of plastic ID cards, the dedicated glare reducer has a gentler setting that protects text.

Saving

Results save as JPEG by default, which keeps scanned pages small. Choose PNG for line drawings or B&W pages where you want perfectly clean edges. Download one image, or all of them as a ZIP; to combine pages into a document afterwards, use JPG to PDF.

Questions