Global Mapper v25.0

Tif Image Size

Kinnie Global Mapper UserTrusted User
edited March 2015 in Raster Data
When I calibrate maps and converting them to tif image, I end up with BIG file sizes. A single 1/100,000 size sheet (ex Perry-Castañeda Library Map Collection) ends up as a 137.2Mb file. What settings should I use to get a smaller file size (without losing detail).

Assistance would be appreciated.