Thank you for your post. As long as the map is a geospatial PDF or a GeoTIFF you should be able to import it without any issue. In addition to these two, we also support JPG as long as they are in a zipped folder with the applicable reference files. What file format is the map?
For more details on the file formats that we support for import, please see our help articles below:
If you are still having issues, please don’t hesitate to respond here, or reach out to us via the form at help.avenzamaps.com