Thailand e-Visa photo error: “The photo resolution is too low.”

What the message means

In the portal’s code, this suggestion is shown when the ICAO check returns “Image resolution is too low for specified eye separation”. The check measures how many pixels lie between the centres of your eyes. If the face is small in the frame, or the image has few pixels overall, that distance is too short for the check to read your face reliably.

It appears under the warning “We detected that your photograph might fail to meet the guidelines.” together with any other suggestions.

Why it happens

• The photo was taken from too far away, so your face is small and most of the image is background.
• The image itself is small: a thumbnail, a screenshot, or a copy compressed by a chat app.
• You cropped a small area out of a larger photo and saved it at that small size.

How to fix it

1. Use the original photo from the camera, not a shared or downloaded copy.
2. Frame from mid-chest to just above your head so the head takes up 70–80% of the photo height, as the portal asks.
3. If you crop, crop from the original and keep the result large. The Royal Thai Embassy in Singapore gives 472×709 pixels for the e-Visa photo.
4. Keep it a JPG under 3 MB.

Before you upload again

IDPlain’s free checker reads the pixel size of your photo and measures your head size against the Thailand e-Visa rules on your device. Files it makes are cropped to 472×709 pixels from your original, never enlarged.