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Security on a PDF document protects the content from unauthorized access like copying or printing. PDF documents can be secured and encrypted using various encryption schemes. Control over document security in PDFTron SDK is performed through security handlers. Security handlers perform user authorization and sets various permissions over PDF documents.

PDFTron SDK benefits include:

  • Support for Standard PDF security handler (40 and 128 bit RC4 encryption)
  • Support for 128 and 256 bit AES (Advanced Encryption Standard) encryption
  • Support for custom security handlers
  • Support for Crypt encryption filters
  • Set or modify security permissions associated with a document
  • Remove encryption from existing PDF documents
  • Powerful extension mechanism allowing for seamless integration with client applications

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