Hi Madhusudhan,
Thank you for your interest in Syncfusion Products.
Essential PDF is a Non UI component which can produce Adobe PDF files. The PDF file that is created using Essential PDF can only be viewed using Adobe Acrobat or the free version of Acrobat Viewer from Adobe. By using Essential PDF, it is possible to disable the "Print" options displayed on the PDF toolbar by encrypting the document, but it is not possible to disable the "Save Copy" option.
//Document security
PdfSecurity security = document.Security;
//use 128 bits key
security.KeySize = PdfEncryptionKeySize.Key128Bit;
security.OwnerPassword = "syncfusion";
security.Permissions = PdfPermissionsFlags.CopyContent;
security.UserPassword = "password";
Please refer the sample in the below link which illustrates the above:
http://websamples.syncfusion.com/samples/PDF.Web/5.2.0.25/70075/main.htmPlease try this and let me know if this helps.
Thanks,
Melba