Invert polygon

[PeterGardner]

I have a polygon of a geographical area. I want to shade the area outside it. Despite having read various posts on the subject I can't work out how to do this in ArcGIS Pro. I am a relative beginner on the ArcGIS Pro so any 'straight forward' explanation would be appreciated.

[Eugene_Adkins]

Here’s some information (at the very least, I believe you should be able to do this from the map properties settings):

• https://enterprise.arcgis.com/en/portal/11.1/use/set-map-properties-mv.htm#:~:text=In%20the%20Backgr....
• https://pro.arcgis.com/en/pro-app/latest/help/mapping/properties/set-map-properties.htm

Hope this helps.

[PeterGardner]

Eugene
Many thanks. There are occasions in the project when I will want to show the whole area so I think I need to do this at layer rather than map level.