Brightness, contrast, sharpening and inversion tuned for photographed paper. Free, no signup, and the file never leaves your device.
A receipt photo nobody can read, including you.
Document Text Enhancer is one of 22 free browser tools on IMGX Studio, filed under Clean up & enhance. It runs entirely on your own device: the image is read in the browser, processed there, and never uploaded to a server, so there is nothing to delete afterwards and no account to create.
Open the tool, drop in an image, adjust the settings, and download the result. It works on desktop and mobile, there is no watermark, and there is no limit on how many times you use it.