On the passport page, drop a head-and-shoulders photo and pick the form. The background becomes exactly white with no shadow, the crop is placed from the outline of the person with an adjustable gap above the head, the picture is drawn at the form’s pixel size, and the JPG quality is searched until the file lands inside the KB window. The saved file is then opened again and every background pixel is counted, so the note can say how many are exactly 255, 255, 255.
Take the photo facing a window, a step away from the wall, at the camera’s full resolution. Nothing is uploaded: the cut-out model is downloaded once and runs in the page.
- Why does a portal reject a photo that looks fine?
- Usually for a number, not for the face: the file is 210 KB against a 200 KB limit, the pixel size is off, or the background is a pale cream rather than white. Each of those is checked by software before a person sees the photo, so the fix is to measure the file, not to retake the picture.
- Is a white background really 255, 255, 255?
- On a screen, white is 255 in all three channels. A wall photographed in daylight is rarely above 230. Portals that check the background test for a light, even colour; pure white passes every version of that test, which is why this site fills the background with exactly 255 and then checks the saved file.
- What if two sources give different sizes?
- Use the stricter one, and read the notice for your own cycle. Coaching sites and photo services copy limits from old notices; the official notification for the exam or the passport office is the only figure that counts.
- Can a portal tell the photo was edited?
- Replacing the background is what a photo studio does too. What matters is that the face is unaltered. The tools here change only the background and the crop, and they carry no EXIF data into the file.