问题
I sent an image to a telegram group and I want to delete it. but I already delete it for myself. is there any way to delete it for all other members? I am not admin
回答1:
You need to check Delete for all members when delete message, or you might not able to do this.
BTW, if you mean Supergroup, always delete for all members.
来源：https://stackoverflow.com/questions/45003453/how-to-remove-an-image-from-a-telegram-group