Scan Documents with Perspective Correction
Photograph a page at any angle and a perspective transform flattens it into a straight-on scan, then cleans it into a crisp document.
Photograph a page at any angle and a perspective transform flattens it into a straight-on scan, then cleans it into a crisp document.
Photograph a page from any angle and a perspective transform flattens it into a straight-on scan, then adaptive thresholding cleans it into a crisp black-and-white document.
Turns phone photos of contracts, receipts and forms into straight, readable scans.
Also searched as: document scanner online, scan document with phone, camscanner alternative, photo to scanned pdf.
It solves an eight-parameter projective homography between the four corners you mark and a flat rectangle, then inverse-maps every output pixel with bilinear sampling. A page photographed at an angle comes out looking like it was laid flat on a scanner bed.
No. Scan Documents with Perspective Correction runs as JavaScript inside your own browser tab. Your file is read from your device into browser memory and the result is saved back as a download, so nothing is transmitted.