I know the likely answer to this is probably no but I thought I'd ask. Is there any way to export data from a PMF into a format where it can be edited? (shp file)
You are correct that the *.pmf documents do not allow you to export the data for editing purposes. According the the FAQ:
<CLIP> ArcReader can only read data through a PMF. The PMF supports access to all standard vector and raster formats supported by ArcGIS. The PMF does not include the data. Rather, the PMF references the data whether it is on a local drive, a shared network drive, or an Internet service. The PMF preserves a live connection to the data, so the user's data view is dynamic. <END CLIP>
