Introduction

RasterView is an Apple, CUPS, and PWG raster file viewer. It basically allows you to look at the raster data produced by any of the standard CUPS RIP filters (cgpdftoraster, imagetoraster, pdftoraster, and pstoraster) or the ipptransform tool and is normally used to either test those filters or look at the data that is being sent to your raster printer driver or printer.

RasterView is licensed under the Apache License Version 2.0.

Running RasterView

The program is called “rasterview” on UNIX/Linux and “RasterView.app” on macOS. Run the program and then open a raster file, or pass the filename on the command-line. You can view multiple files simultaneously.

The Basics

RasterView starts in zoom in mode (Z) which allows you to click on the page or drag a zoom box on the page to zoom in. You can also use pan mode (P) to drag/pan the page in the window, zoom out mode (SHIFT + Z) to click on the page to zoom out, or color viewing mode (C) to click or drag the mouse and view the raw colors on the page and copy the color values to the clipboard.

Keyboard Shortcuts

• Spacebar: Show next page
• Backspace/Delete: Show previous page
• 0: Zoom to fit
• 1 to ‘8’: Zoom Nx
• 9: Zoom 20x
• -: Zoom out
• =: Zoom in
• C: Click or drag mouse to view colors
• P: Drag mouse to pan
• Z: Click or drag mouse to zoom in
• SHIFT + Z: Click to zoom out
• CTRL/CMD + A: Show/hide the page attributes
• CTRL/CMD + O: Open a raster file
• CTRL/CMD + Q: Quit RasterView
• CTRL/CMD + R: Reload the raster file