This demo sets some defaults tag
this is obviously uses when you fetch tags from your db.
A tag mush have a :
$("#img1").tag({ showTag: 'always', canDelete: false, canTag: false, defaultTags: [ {'id':1,'label':'Uncle jack','width':150,'height':190,'top':50,'left':160}, {'id':2,'label':'Baby john','width':100,'height':150,'top':250,'left':280} ] });