Package com.ironsoftware.ironpdf.security

Enum PdfEncryptionType

    • Enum Constant Detail

      • RC4_128

        public static final PdfEncryptionType RC4_128
        128-bit RC4 encryption (PDF 1.4). This is the default and preserves the historical behavior of IronPDF. RC4 is considered cryptographically weak; prefer AES for new documents.

      • AES_128

        public static final PdfEncryptionType AES_128
        128-bit AES encryption (PDF 1.5+). Supported by Adobe Acrobat 7 and all modern readers.

      • AES_256

        public static final PdfEncryptionType AES_256
        256-bit AES encryption (PDF 2.0). The strongest option; supported by Adobe Acrobat 9+ and most modern readers. Passwords are encoded as UTF-8 per ISO 32000-2.

    • Method Detail

      • values

        public static PdfEncryptionType[] values()
        Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows: 
        for (PdfEncryptionType c : PdfEncryptionType.values())
    System.out.println(c);
        Returns:
        an array containing the constants of this enum type, in the order they are declared

      • valueOf

        public static PdfEncryptionType valueOf​(String name)
        Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
        Parameters:
        name - the name of the enum constant to be returned.
        Returns:
        the enum constant with the specified name
        Throws:
        IllegalArgumentException - if this enum type has no constant with the specified name
        NullPointerException - if the argument is null