how to repair a damaged canvas
Get a sheet of oil canvas practice paper. Cut to cover damaged area, and extend a little beyond. Coat back of paper with pva glue. Apply to back of canvas. Gently press with dry cloth. Allow to dry.
Can infill any slight gap on front of canvas with pva or white acrylic and allow to dry. At one time I`d have thought, how could you rip a canvas? But this happened to me when I`d shopped for canvasses, and my lovely better half threw his joinery shopping on the back seat of the car and put a split in the canvas.