Printing AutoCAD drawings requires careful configuration so that lines are sharp, text is legible, and the overall layout matches the target sheet size. This guide walks through key steps for setting up plot styles, paper orientation, and printing options to produce clean, professional output every time.
1. Accessing the AutoCAD Plot Dialog
To start printing, open the Plot – Model dialog from your current AutoCAD workspace.
- Press Ctrl + P to open the Plot dialog directly from the model tab.
- Click More options to expand the dialog and reveal advanced settings such as pen/line‑weight and plot style tables.
AutoCAD Plot – Model dialog showing expanded settings for plot style and line‑weight configuration
After expanding the dialog, you can proceed to create and assign a custom Plot Style Table (CTB or STB) that controls how colors and line weights appear on paper.
2. Creating a Custom Plot Style Table
Plot Style Tables determine how each color in your drawing maps to a specific line weight, dithering, or grayscale value. This is essential for clean, readable prints.
- In the Plot Style Table section, click the drop‑down arrow and choose New.
- Select Start from scratch and click Next.
- Enter a meaningful File Name (e.g.,
Engineering_A4.ctb) so you can easily reuse it for similar drawings. - Choose whether to apply this style to:
- The current drawing, or
- New and pre–AutoCAD 2007 drawings in the future.
- Click Finish to save the table and return to the main Plot dialog.
Form View window for creating a new Plot Style Table in AutoCAD
You can now assign this table to your current layout and adjust individual color mappings.
3. Configuring Line Weights and Colors
To ensure your AutoCAD drawings print clearly, map each color to an appropriate line weight and decide whether the output should be black‑and‑white or full color.
Using the Form View
- In the Plot Style Table Editor, switch to Form View → Plot Styles.
- Hold Shift and click Color 255 to select it as a reference, then click Color 1 to start from the first color.
- Drag the tab down and hold Shift while clicking Color 255 again to highlight all colors at once. This helps avoid accidentally skipping any color used in the drawing.
Adjusting Color and Line Weight in Properties
- In the Properties tab:
- For monochrome prints, set Color to Black so all lines plot in black, regardless of the original color.
- For color prints, select Use Object Color if you want the actual colors of geometry to appear on paper.
- In the Line Weight field, set a default value such as 0.1300 mm for most lines.
- Increase the line weight (e.g., 0.1500 mm or higher) for specific colors that should appear thicker or more prominent, such as red outline layers or key annotations.
Plot Style Table Editor with color and line‑weight configuration for clear AutoCAD prints
Unconfigured colors will use the default 0.1300 mm line weight. Once you finish, click Save & Close to update the plot style.
4. Setting Paper Orientation and Layout
AutoCAD’s Drawing Orientation controls how the plot frame fits the paper: vertical, horizontal, or mirrored.
In the Drawing Orientation section of the Plot dialog:
- Portrait: Fits the plot area vertically within the paper. Best for tall layouts or narrow title blocks.
- Landscape: Fits the plot horizontally. Often preferred for A3 or A0 drawings where the content is wider than it is tall.
- Plot upside‑down: Plots the content upside down, which can be useful if the printer or plotter requires a specific loading orientation.
Preview the layout at this stage to ensure the drawing frame aligns with the paper edge and does not get cut off.
Preview of AutoCAD layout showing how the drawing fits on the selected paper size
After you are satisfied, adjust margins or move the drawing frame if needed.
5. Choosing the Right Paper Size
To print correctly on A4 or A3, you must explicitly select the right paper size.
- In the Paper Size dropdown, click the arrow and choose the target sheet format (e.g., A4 (210 x 297 mm) or A3 (297 x 420 mm)).
- If your printer supports custom sizes, add them through the printer’s driver settings and then select them in AutoCAD.
AutoCAD paper size selection dialog for common sheet formats A4 and A3
Make sure the Scale and Plot Offset settings match your sheet size and border requirements. For example, many users set the scale to 1:1 and shift the drawing slightly inward to avoid clipping.
6. Selecting the Print Area with Window
If you only need to print a portion of your drawing, use the Window option to define a custom print area.
- In the Plot Area section, click the drop‑down arrow under What to plot and select Window.
- Click and drag to create a rectangle covering the exact region you want to print.
- Confirm the window by pressing Enter or clicking OK.
This approach is especially useful when printing only a specific detail, section, or area of a large construction or architectural drawing.
Window selection in AutoCAD to define a custom plot area for CAD prints
7. Choosing the Right Printer and Drivers
For professional AutoCAD print output, the choice of printer and driver is critical.
- Use a PostScript or PC3 driver that supports DWG‑to‑PDF export if you also need PDF versions for sharing or archiving.
- For A3 architectural or engineering drawings, reliable large‑format printers such as Canon A3 plotters or Xerox/Ricoh multifunction devices are widely recommended because they maintain fine line detail and accurate scaling.
- If you do not plan to print physically, configure AutoCAD to use the DWG to PDF.pc3 driver so that exports remain error‑free and preserve layout integrity.
Preview the print at high zoom to check that:
- Text and dimension labels remain readable.
- Thin lines do not appear faint or broken.
- Hatch patterns and fills are clearly distinguishable.
If issues arise, return to the Plot Style Table or Line Weight settings and adjust before printing.
8. Final Tips for AutoCAD Printing
- Always use custom plot styles for consistent line weights instead of relying on default color mappings.
- Match the paper size and drawing orientation to your project’s standard sheet sizes (A4, A3, A1, etc.).
- For construction sites or large projects, consider renting or using A3 printers or photocopiers to ensure quick, on‑site printing without quality loss.
- Perform a preview and zoom‑in test before printing critical drawings to avoid costly reprints.
By following these steps, you can ensure that your AutoCAD drawings always print with sharp lines, clear text, and accurate scaling—whether you are working on A4 office plans or A3 construction details.