According to the search results, the passport picture size for the American lottery must be 2 x 2 inches (51 x 51 mm) in size. The digital image must be in a square aspect ratio, with minimum acceptable dimensions of 600 x 600 pixels and maximum acceptable dimensions of 1200 x 1200 pixels. The photo must be in color (24 bits per pixel) in sRGB color space, and in JPEG file format. The file size must be less than or equal to 240 kB (kilobytes) . The photo must be recent and must not be digitally enhanced or altered to change the appearance of the applicant in any way. The head must be between 1 -1 3/8 inches (25 – 35 mm) from the bottom of the chin to the top of the head.