Risograph Tutorials Imaging Center YouTube Channel Click Here to view all Imaging Center videos & tutorials. Risograph Tutorials: How To Prepare Your File for Riso Printing in the IC Downloading .ASE (color swatch) file in Photoshop Creating a Photoshop file from scratch using layers (instead of channels). Creating a Photographic Riso print by splitting channels. Splitting channels in Adobe Photoshop on an existing photographic image. Placing Photoshop images into Adobe InDesign.