The Print Size Wizard feature is useful when you plan to print a rendered image. It lets you specify output size, resolution, and orientation in terms of the printed image; that is, using a standard measuring system rather than pixels. It also indicates the approximate uncompressed size of the image file. You can render directly from the wizard on your computer or over a network, or transfer the settings to the Render Setup dialog.
Standard menu: Rendering menu > Print Size Assistant
From the Rendering menu, choose Print Size Assistant.
Choose a preset paper size, or specify a custom size in inches or millimeters. Alternatively, specify an image size in pixels.
Choose or specify a DPI (dots per inch) ratio for the printed output.
Choose an output orientation: Portrait or Landscape.
When ready to render to a file, turn on Save File, click the Files button, and use the resulting Select TIFF File dialog to specify an output image file.
Do one of the following:
To render immediately, click Render.
To set further rendering properties, click Render Setup.
Tip: After changing this setting, be sure to preview the image using the Show Safe Frames function on the Point-Of-View (POV) viewport label menu. This shows how the output orientation corresponds to the viewport.