PDFEncryption / Permission
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in the OCX this is property "SECURITY_PERMISSION"
This property can be used to switch off copying or printing for the created PDF file. If you don't specify an owner password it will be auto-created once you set this property<>0.
Bit 1: enabled,
bit 2: Enable Printing,
bit 3: Enable Changing,
bit 4: Enable Copying,
bit 5: Enable Forms.
bit 6: LowQualityPrintOnly
bit 7: EnableDocAssembly
bit 8: EnableFormFieldFillIn
bit 9: EnableAccessibilityOp
You can also use SetIProp(pdf, 5, x);
Don't forget to also set bit 1 in property "Permission" to make the encryption work.
If you use the new PDFCreator interface, please see "Protection"