signature in sap adobe form

Hi Team,

I need to print the signature on check , i designed the check using SFP and added other fields (logo, amount ..etc) ,now i need to add the signature ( its same standard signature on all the check , i gone through blogs .all they talk about digital signature using ADS, iam not sure do i really need to follow the same procedure or can i use tiff/Bmp file to add? Please let me know the right procedure in my scenario.

Thank you