Publisher's blurb:
Virtual tabletop dungeon maps of the WOTC adventure Waterdeep: Dragon Heist Map 4.1 Alley.
It's intended for online play, but a hi-res option is included that can be printed out and used on the tabletop.
This set includes day/night, grid/no-grid, and ruins/restored variations! A DM Notes is included too. The digital download includes 21 lo-res and 21 hi-res maps (total 42!). This is not the complete set of Dragon Heist maps, it is only for the 4.1 section of the adventure.
The maps are designed with a 5 ft. grid, which corresponds to one inch at 75dpi. Resolution size is 10800 x 7500 pixels)
You can divide the pixels by 75 to get the number of squares for roll20 or other virtual tabletops or use the Roll20 watermark to align the map.