Allegro uses "Text Blocks" to control dimensions. To customize these: Go to and select the Text tab. Click the Setup Text Sizes button (marked with ... ).
If you need to change the content or size of text already on your board: OrCAD / Allegro PCB Editor
Choose a (this determines the size and font style). Allegro uses "Text Blocks" to control dimensions
In the table that appears, you can define parameters for each block number: Physical size of characters. OrCAD / Allegro PCB Editor
To add a long description without typing, right-click while the command is active and select Read from File to import a .txt file. 2. Configuring Text Sizes (Text Blocks)