Hello,
You will not face any problem.If your photo will be unclear or have more/less dimenaions you will receive an sms regarding correction of images from jee..And even if your photo has no date and name present then also you need not to worry.Your photograph will only be verified at the examination centre.
However if you want to change then you can do it most probably from 2nd week of january ,2018 when correction window will be available on jee mains website.
Good luck.

JEE Main authorities will send an SMS to you if photo is not acceptable. Then you can edit it. As for name and date, even if you dont put that in, they will still issue an admit card. that is not an issue. Please dont worry.

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