Pdfbox decrypt document

Owner Password - Also referred as the "permissions password". This password is used to access the file with all permissions. User Password - Also referred as the "open password". This password allows to open and view the file with restricted permissions. We can load the existing PDF document by using the static load method. This method accepts a file object as a parameter. We instantiate AccessPermission class to create an object which can be shown below. We instantiate StandardProtectionPolicy class to create an object.

In this class, we need to provide the owner password and user password as a parameter which can be shown in the below code. We can set the length of the encryption key by using the setEncryptionKeyLength method which can be shown in the following code.

We can set the permission by using the setPermissions method. This method accepts an AccessPermission object as a parameter. We can protect our document by using protect method. This method accepts the StandardProtectionPolicy object as a parameter.

After adding the required content, we need to save the document to our desired location. The save method is used to save the document.

The save method accepts a string value and passes a path of the document as a parameter. Finally, after completing the task, we need to close the PDDocument class object by using the close method. Suppose, this is a PDF document file named Merged. This document contains the password for owner and user both. To open this PDF document, it requires the Password which can be shown in the following output. JavaTpoint offers too many high quality services.

You can protect your document using the protect method of the PDDocument class as shown below. Pass the StandardProtectionPolicy object as a parameter to this method. After adding the required content save the PDF document using the save method of the PDDocument class as shown in the following code block.

Finally, close the document using close method of PDDocument class as shown below. Suppose, we have a PDF document named sample. This example demonstrates how to encrypt the above mentioned PDF document. Here, we will load the PDF document named sample.

This method is provided for compatibility reasons only. User should use the new security layer instead and the openProtection method especially. What does it mean? Could someone give an example how to decrypt a pdf-document correctly with pdfbox? Additional advice: download the source code package. You'll find many examples that will help you further. To use the openProtection method you have to provide an instance of DecryptionMaterial.

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