Aspose.PDF FOSSJavaRC4CipherRC4CipherOverview RC4Cipher is a class in Aspose.Pdf FOSS for Java.RC4 (ARCFOUR) stream cipher for PDF decryption.Methods SignatureDescriptionprocess(key: byte[], data: byte[]) → byte[]Processes (encrypts or decrypts) data using RC4.See Also Aspose.PDF for Java — Enterprise API Reference