Choose your document (US passport, DS-160 visa, green card and DV lottery, UK passport, Schengen visa, Canada, India or Australia passport), add a photo taken at home and see the result before paying. The photo is cropped and straightened to the specification, the background is evened out, and issues such as glasses or a head that is too small are flagged. Uploads are deleted after 24 hours. It is an independent service, not affiliated with any government agency; only the issuing authority can approve a photo. Pricing: $4.99 for the digital file, $6.99 with a printable 4x6 in sheet, one-time, no subscription.