Some arrowheads in ArcGIS Desktop (ArcMap) annotation may shift positions when opened in ArcGIS Pro

Description

In ArcGIS Pro, the amount that the marker symbols (arrowheads) shift at the end of leader lines is controlled by the Begin position and End position properties of the marker symbol in the annotation text symbol leader line style.

In ArcGIS Desktop, line decorations (arrowheads) on leader lines are positioned so the tip of the arrowhead is positioned at the tip of the leader line, as shown in the next image.

When some of these symbols are opened in ArcGIS Pro, the arrowheads positions may differ from their appearance in ArcGIS Desktop, causing them to extend past or stop short of the leader line terminus, as shown in the image below.

Solution or Workaround

In ArcGIS Pro, the amount that the marker symbols (arrowheads) shift at the end of leader lines is controlled by the Begin position and End position properties of the marker symbol in the annotation text symbol leader line style.

In the image of the Attributes settings for the line symbol marker settings shown below, the Begin position is 0 pt, and the tip of the arrow extends well past its intended terminus. 

In the next image, the Begin position is 1.5 pt, and the tip of the arrow is closer to its intended position.

In the final image below, the desired Begin position is equal to 2.5 pt.

Edit the Marker Placement properties to adjust arrowheads to the desired position.

Python scripting can be used to perform this adjustment in bulk for many affected features in an annotation feature class. A script, SetLeaderLineArrowheadPosition.py, is attached to this article and can be downloaded to restore marker symbols to their positions in ArcGIS Desktop. The script creates a copy of the input data so the original data is not modified.

Annotation features that use character marker symbols don't have precise information stored in the CIM about each character. For more precise placement of these symbols, figure out the preferred offset distances for each character size and enter details about the in the characterLookups variable.