iOS & Android Collect Application
Lightship Collect now supports geo-referenced PDF background maps. A north, east, south, or west pointing geo-referenced PDF map can be uploaded to Collect on your phone or tablet, and is then available for use offline.
Geo-referenced PDF maps printed from Lightship (using the print feature) can be used in Collect in this way.
Here is a 'How To' article with steps to loading a geo-referenced PDF map to Collect: Use PDF Layers Offline.