Scan to PDF · straighten photos

How a photo becomes a scan

A phone photo of a document shows the paper as a skewed trapezoid, often with shadows and yellowish light. Using the paper's four corners, this tool calculates the perspective (a projective transform) to flatten it into a rectangle, then evens out the lighting so you get black text on a white background, just like a scanner.

How to use it

1. Drop document photos. The bright paper area is found and its corners are set automatically (“corners auto” in the list).
2. Drag the orange circles exactly onto the paper's corners. The result on the right updates when you let go.
3. Choose the output shape (A4, as measured, or card) and the enhancement (black & white document, brightened color, high-contrast).
4. With several photos, select each in the list and adjust it, then click “Download PDF” to combine them into one PDF.

Tips for a good photo

• Place the paper on a darker desk or floor so the corners stand out.
• Fill the frame with the page but keep all four corners visible.
• Shoot in good light without shadows, and avoid flash glare.

Even sensitive photos such as ID copies are processed on this device and never uploaded. When sharing an ID copy, consider hiding numbers you don't need to share with the Blur & Pixelate tool.