Photo canvas is a great beautiful thing for gifting and to decor your home or office.at it seems to be bad if it is covered with dust,dirt,water stains,any tear etc. But fortunately there are some strategies for gleaning the canvas that surely don’t cause any harm to your painting and make it look better as before.For that you just have to do some work,take out the photo from the wall or take the picture or photo frame the frame,but it is not so necessary.wash the paint to remove the dirt then take a soft cloth or a soft brush to glean up the painting,this is enough to give is shine back.If the cost of the painting is high then do not clean the paint beyond the light dusting.there are some reputable gallery in which you get the recommendation for your art restores.If the painting is of water color or acrylics then do not the liquid cleaners. Use a piece of soft bread and removed the crusts to press over the painting and remove the dirt neatly.If your painting is of oil painting then use liquid cleaners the art stores having the varnish remover and the emulsion using to remove the dust from the oil painting.Clean the dirt with cotton remove gently only the dust not the paint.Finally remove the dust from the frame and clean the glass.Clean the wall where you are going to hang it. Don’t hang that where the dust particles rising in the air and stink to your painting.