How to Encrypt and Decrypt PDF Documents in Java

When working with PDF files, encryption and decryption are both critical to ensuring the security of sensitive information while maintaining the flexibility and convenience of the files. By setting a password for a PDF, we can control access to the file and prevent unauthorized viewing, editing, or copying. Conversely, decrypting a PDF can make the document accessible or editable again. In this video, you will learn how to use Spire.PDF for Java to encrypt and decrypt PDF files.
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