You can obtain a monochrome CTB file in several ways:

The monochrome CTB (Color-Dependent Plot Style Table) file for AutoCAD is an essential tool for professionals who need to produce clean, black-and-white technical drawings. Downloading a pre-configured monochrome CTB file saves significant time compared to manually setting up pen assignments for each color index.

You can assign the CTB to a specific viewport or page setup to ensure no one accidentally prints in color.


| Setting | Result | |---------|--------| | Monochrome | Forces all colors to pure black (RGB 0,0,0). | | Grayscale | Converts colors to shades of gray (some lines may print faint). |

For strict black linework, always choose Monochrome, not Grayscale.