Implementation of the water-marking of Text documents Images using Histogram + Reversible watermarking Technique. In order to hide copyright information in e-media like images, scanned documents and can be applied to PDF too. Variation of this project: Watermarking technique using Edge-Direction Histograms: Hide and protect information in different media so that even if the media is tampered or changed, the information is retained to a certain extent. &&  Publication of a paper in the “Interscience open access journal” on “Watermarking of grayscale text document images           using Histogram swapping”   and   presented   it   at   the   “International  Conference- ICC SIT International Conference  June  2012”   in Bangalore