From layout view Share>Output group>Exported Layout, my gridlines do not show up if I export to a PDF or PNG.
Solved! Go to Solution.
When you're in your layout view, click on the map to select it, then go to Insert>Map Frames>Grid and you should have the option from there to add grid lines that will show up in your exported PDF. You can edit these grid lines from the Contents pane to tailor it to what you want.
When you're in your layout view, click on the map to select it, then go to Insert>Map Frames>Grid and you should have the option from there to add grid lines that will show up in your exported PDF. You can edit these grid lines from the Contents pane to tailor it to what you want.