Adobe InDesign is a versatile graphic design software that allows users to work with various measurement units, including inches, millimeters, and pixels. While inches are commonly used in North America, millimeters are the preferred unit of measurement in many other parts of the world. If you’re working on a project that requires millimeters, here’s a step-by-step guide on how to change the measurement units in Adobe InDesign:

Step 1: Launch Adobe InDesign

Open Adobe InDesign on your computer. If you have any documents currently open, it’s recommended to close them before proceeding.

Step 2: Access Preferences

On a Windows system, navigate to the “Edit” menu and select “Preferences”. For Mac users, go to the “InDesign” menu and choose “Preferences”.

Step 3: Select Units & Increments

In the Preferences window, locate the “Units & Increments” section. This section allows you to modify the measurement units used throughout InDesign.

Step 4: Choose Millimeters

Under the “Ruler Units” dropdown menu, select “Millimeters”. This will change the default measurement unit from inches to millimeters.

Step 5: Apply Changes and Close Preferences

Click the “OK” button to apply the changes and close the Preferences window.

Step 6: Verify Unit Change

Open an existing document or create a new one. Observe that the rulers and measurement displays now reflect millimeters instead of inches.

By following these simple steps, you have successfully changed the measurement units from inches to millimeters in Adobe InDesign. This will ensure that your design elements and measurements align with the preferred units for your project.