1, two inches smaller
Actual size: 3.3 * 4.8cm；; Required pixels: 600 * 400; Usually four sheets of paper are arranged on a 5-inch photo paper.
Two, two inches
Actual size: 3.5 * 5.2cm；; Required pixels: 600*400 or more; Usually four sheets of paper are arranged on a 5-inch photo paper.
According to the size definition, there are three kinds of ID card photos: one inch, two inches smaller and two inches smaller, among which one inch and two inches are mainly used for various diplomas, resumes, etc., and two inches smaller is mainly used for passports.
Extended data:
Certificate background color
1, white background: used for passports, visas, driver's licenses, ID cards, second-generation ID cards, driver's licenses, black and white documents, medical insurance cards, Hong Kong and Macao passes, etc.
2. Blue background: used for graduation certificate, work permit, resume, etc. (Blue values are: R:0G: 19 1B:243 or C:67M:2Y:0K:0).
3. Red background: used for insurance, medical insurance, IC cards, temporary residence permits and wedding photos (red value: R:255G:0B:0 or C:0M:99Y: 100K:0).