The meaning of the Acronym SDX is...

SDX is

• Secure Document eXchange

More Meanings For SDX:

• Sample DUMP Exchange File
• Starkit Developer eXtension
• Spatial Data Explorer
• Secure Document eXchange
• Sodexho Alliance, SA, American Depositary Receipts
• Spatial Data Explorer
• Secure Document eXchange
• Spatial Data Explorer
• Sedona, Arizona USA

SDX is also in:

• Accounting
• Airport Codes
• File Extensions
• Military
• NASA
• NYSE Symbols
• Software