7. The method as claimed in claim 1 , further comprising: activating a client application for displaying the content of the document.
7. The method as claimed in claim 1 , further comprising: activating a client application for displaying the content of the document. 8. The method as claimed in claim 7 , wherein when the touch event is detected, further comprises: copying the content by the client application to a storage unit; and enabling a text parsing function for parsing the copied content to find out the text groups according to the preset pattern database.