for my parents. Do they have to be printed on A4 paper? On US embassy webpage (in English), it does not say anything about the size of the paper. However, on US embassy webpage, Chinese version, it says to print on A4 paper, which is 210 X297cm. I'm using the regular US letter size, 8.5 inX 11 in(216 X279cm). Is it going to be a problem, or we're just thinking too much?
Thank you very much for the help.