Hi,
I tried this out with some test data and it seemed to work.
1) In a new map document or data frame add your raster.
2) Create a polygon around your raster. Any shape, just make sure it's more than 5m away from the edge of the raster. The exception is drawing the one edge of the polygon right along the edge of the top row without any space.
3) Create a second polygon (new feature class) around the first.
4) Start an edit session (if asked, choose to edit the outer polygon).
5) Select the inner polygon. Then from the Editor drop-down menu choose Clip (the Buffer Distance should be 0, and press OK). This will erase the inner polygon from the outer.
6) Save edits and stop editing.
7) Start a new editing session (if asked, choose the inner polygon).
😎 Select the outer polygon. Then from the Editor drop-down menu choose Clip (the Buffer Distance should be 5, and press OK). This will erase 5m from the boundary of the inner polygon. Since the top of the inner polygon was touching the edge of the raster, the boundary of the inner polygon is now 5m inside your raster at the top.
9) Save edits and stop editing.
10) Clip your raster to the inner polygon. (Clip tool in Data Management).
Best of luck,
Jenn
