You can control TIFF compression from the File Format section of output process templates.
G4 is the recommended compression method for high-resolution, 1-bit output in most cases. G3 and G4 compression options are not available if either of the following conditions exists:
- The Always use Color Combiner to Convert Spots check box is selected on the Render section of the output process template.
- A stochastic (FM) screening system is selected in the Screening System box on the Calibration & Screening section of the output process template.
Either of the above conditions may cause stochastic pattern data, which can generate very large files when G4 compression is used.
G4 is a safe and recommended compression method when:
- You have CMYK data only and aren't using a stochastic (FM) screening system.
- You have spot colors and are not using the Color Combiner.
When dealing with stochastic screening, ZIP is the recommended compression method.