Text on Arc add-in creates sketch text on the selected arc, spline, elliptical arc, conical curve, circle, ellipse or line. This add-in allows you to specify the arc, text, font name, font height, font style, alignment, spacing, offset, kerning and side of the arc. It has an option to break the text into profiles and an option to edit existing text on arc.

Steps to create new text:

1. Open a sketch.
2. Draw a sketch arc, spline, elliptical arc, conical curve or line.
3. Press the "Text on Arc" button in the "Sketch" panel.
4. Select the arc.
5. Enter the text, height, font name, style, alignment, spacing, and offset.
6. Select the "Flip" field to create the text on the other side of the arc.
7. Select the "Explode Text" field to break the text into profiles.
8. Press "OK" button.

Steps to edit existing text on arc:

1. Open a sketch.
2. Press the "Text on Arc" button in the "Sketch" panel.
3. Select the existing text on arc created with the "Text on Arc" add-in.
4. Change the text, height, font name or style.
5. Press "OK" button.

Install:
The installer that ran when you downloaded this app/plug-in from Autodesk App Store will start installing the app/plug-in. Or, simply double-click the downloaded installer to install the app/plugin.

Uninstall:
You can unload the add-in without uninstalling it by clicking the "Stop" button when the add-in is selected in the list box on the "Add-Ins" tab of the "Scripts and Add-Ins" dialog.
Unchecking "Run on Startup" causes the add-in not to be loaded in future sessions of Autodesk® Fusion 360™.
To uninstall this plug-in, exit the Autodesk product if you are currently running it, simply rerun the installer, and select the "Uninstall" button.
Or, you can uninstall it from 'Control Panel/Programs and Features' (Windows 10/11), just as you would uninstall any other application from your system.