To enable the "Save" rights for Reader I can use Acrobat Pro menu option Advanced -> Enable Usage Rights in Adobe Reader...
What is the option in Reader Extensions console that maps to this right? Also, what service would this map to in Reader Extension WSDL?
I believe that "Basic for fill-in" will give you what you are looking for
If that is the case please let me know if the following mapping between RE webservice and RE browser UI is correct.
enabledFormFillIn - Basic form fill-in
enabledFormDataImportExport - Import and Export form data
enabledSubmitStandalone - Submit outside web browser
enabledOnlineForms - Database and web service connectivity
enabledDynamicFormFields - Add, delete and change form fields
enabledDynamicFormPages - Create pages from templates
enabledBarcodeDecoding - 2D bar decoding
enabledDigitalSignatures - Digital signatures
enabledComments - Commenting
enabledCommentsOnline - online commenting
enabledEmbeddedFiles - Embedded file attachments
This will help decide the correct WS call.