A watermark is an identifying image or pattern in paper that appears as various shades of lightness/darkness when viewed by transmitted light (or when viewed by reflected light, atop a dark background), caused by thickness or density variations in the paper.<br /><br />Watermarks have been used on postage stamps, currency, and other government documents to discourage counterfeiting. There are two main ways of producing watermarks in paper; the dandy roll process, and the more complex cylinder mould process.<br /><br />Download App Photosop Touch android :<br />https://play.google.com/store/apps/details?id=com.adobe.psmobile<br /><br /><br />=======================================================<br />MI 4I PHOTOGRAPHY<br />https://www.facebook.com/groups/mi4ip...<br /><br />FANPAGE MI PHOTOGRAPHY<br />https://www.facebook.com/MI-Photograp...<br /><br />Instagram : http://instagram.com/thomp_<br />Twitter : http://twitter.com/thomp89<br /><br /><br /><br />Please Subcribe , Likes and Share This Video<br />#Mi4iPhotography #MiPhotography #Xiaomi
