It's possible that the outermost part of the map is not a full grid square in width/height, so you'll have to manually adjust the image and have the outside edge not line up to the Roll20 grid, but get the printed grid image to line up with the Roll20 grid. This also means that you'll have some blank space outside of the map image, so you'll probably want to adjust the background color. Here is my standard process for adjusting maps to line up with the Roll20 grid: Make sure the map image is on the map layer Make sure the map image is set as a ‘drawing’ (right click on the image) Make sure the Roll20 grid is nice and visible - adjust the color to red and turn the transparency up to like 100% Use the ‘align to grid’ feature to get the size close (optional) Move the top left grid on the map image to align with the Roll20 grid Stretch the map image horizontally to the right to align the grid. You may have to repeat 5&6 a couple times Stretch the map image vertically down to align to the Roll20 grid Turn the grid color back to whatever you want (light grey and more transparent, or just off if the map image has grid lines already) Right-click on the map and lock it in place so you don't accidentally move it later (optional)