Altium Designer Documentation

Configuring PCB Comment Object Properties in Altium Designer

Created: September 27, 2019 | Updated: April 10, 2021
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Parent page: Comment

PCB Editor object properties are definable options that specify the visual style, content and behavior of the placed object. The property settings for each type of object are defined in two different ways:

  • Pre-placement settings – most Comment object properties, or those that can logically be pre-defined, are available as editable default settings on the PCB Editor - Defaults page of the Preferences dialog (accessed from the  button at the top-right of the design space). Select the object in the Primitive List to reveal its options on the right.

  • Post-placement settings – all Comment object properties are available for editing in the Parameter dialog and the Properties panel when a placed Comment is selected in the design space.

   

If the Double Click Runs Interactive Properties option is disabled (default) on the PCB Editor - General page of the Preferences dialog, when the primitive is double-clicked or you right-click on a selected primitive then choose Properties, the dialog will open. When the Double Click Runs Interactive Properties option is enabled, the Properties panel will open. 
While the options are the same in the dialog and the panel, the order and placement of the options may differ slightly. 

In the below properties listing, options that are not available as default settings in the Preferences dialog are noted as "Properties panel only".

Location (Properties panel only)

The  icon to the right of this region must be displayed as  (unlocked) in order to access the below fields. Toggle the lock/unlock icon to change its lock status. 
  • (X/Y) 
    • X (first field) - the current X (horizontal) coordinate of the reference point of the object, relative to the current design space origin. Edit to change the X position of the object. The value can be entered in either metric or imperial, include the units when entering a value whose units are not the current default. 
    • Y (second field) - The current Y (vertical) coordinate of the reference point of the object, relative to the current origin. Edit to change the Y position of the object. The value can be entered in either metric or imperial, include the units when entering a value whose units are not the current default. 
  • Rotation - the object's angle of rotation (in degrees) measured counterclockwise from zero (the 3 o'clock horizontal). Edit to change the rotation of the object. Minimum angular resolution is 0.001°.

Properties

  • Parameter type (Properties panel only) - displays the type of parameter (Component, Sheet Symbol, etc.,) and parameter name.
  • Name - the name of the comment.
  • Value - the value of the comment. 
  • Layer - use the drop-down to select the desired layer. Enable Mirror if desired.
  • Autoposition - use the drop-down to select the desired automatic position in relation to the associated object.
  • Text Height - displays the text height.
  • Font Type 
    • TrueType - select to use fonts available on your PC (in the \Windows\Fonts folder). TrueType fonts offer full Unicode support. By default, the software links to a used TrueType font (they are not stored in the PCB file), which means the same font must be present on each PC to which the design is moved. Alternatively, embed used TrueType fonts in the PCB file using the options in the PCB Editor - True Type Fonts page of the Preferences dialog where you can also select a Substitution Font to be used if a non-embedded Font is not available.
      • Font - use the drop-down to select the desired TrueType font. Use the (bold) and/or (italic) options to add emphasis to the text as required. 
        • Inverted - use to have the text displayed as inverted, with control over the size of the border around the text. You can use the following options to further configure the text.
          • Justification - use to set the location of the object within the border rectangle.
            • Horizontal - use to select the horizontal justification: LeftCenter, or Right.
            • Vertical - use to select the vertical justification: TopCenter, or Bottom.
    • Stroke
      • Font - use the drop-down to select the desired Stroke font. Choices are:
        • Default - a simple vector font designed for pen plotting and vector photo plotting. 
        • Sans Serif - a complex font that will slow down vector output generation, such as Gerber.
        • Serif - a complex font that will slow down vector output generation, such as Gerber.
      • Stroke Width - displays the width of the stroke.
  • Border Mode - use to specify the border surrounding the object.
    • Margin/Offset 
      • Text Offset - the amount the object is offset back from the edge/corner that it is justified against. This option has no effect when the Center justification mode is chosen. This option is not available for Margin.
      • Margin Border - use to specify the size of the margin border surrounding the object. This option is not available for Offset.
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