Cleans up photographed or scanned pages and combines them into a PDF, entirely in the browser: EXIF or fixed rotation, automatic deskew (±5°, only when text lines give a clear signal), light-border trim, contrast boost and grayscale or black-and-white, a maximum edge to keep files small, then one page per image on the chosen sheet. On a phone, pick the camera in the file chooser to capture pages directly.