My friend won't take a picture of me off her facebook?

[Amogh]

Hello,
There is no direct way you can do it;

Try anything like these ( only if she is not your real friend, and it seems like!!):

1) Illegal: hack her id and then do the needed changes,
2) All legal: remove your tag from that photo and tag all her photos with as much rubbish as you can!
3) Add her worst pic ever to your profile and publish it as much as you can!
4) Illegal because the reason is not correct: Report her abuse but its not sure that her account will get deleted!
5) Send her spams!

Peaceful ways:
6) Talk to her and get the situation solved ( or else, indulge into a street fight lol!)
7) Do a reasonable favor she asks you to do without losing your morale!

If there's no way, then you may threaten her showing her a pistol or an AK47 and ask her to delete that photo or give you her password!

*Sorry if it hurts you, some of them are mere jokes and nothing else!

Regards,
Amogh.K ( answered such type of a question for the first time)