When you want to save your picture field onto the hard disk, you can simply use the WRITE PICTURE FILE command:
For example, the following code will create a .jpg file on disk, next to the structure file.
WRITE PICTURE FILE("Mypicturefile.jpg";[Table 1]Field2;"JPEG")
Please note that this command uses QuickTime conversion routines (version 4 or above recommended) for Mac OS and Windows. If QuickTime is not installed, the command creates a PICT file by default.
For more information on this command, please check the following location: