You can restrict access to your generated document using the following rules.
The encryption is made in 128bits.
Some PDF Reader don’t make the distinction between user and owner in a PDF Document.
This means that when the user password has been entered, some PDF reader ignore the restrictions (no print, no copy, etc).
So, setting a blank password for the user is similar to no security.
| Parameter | Type | Default | Description |
|---|
| author | String | null | Document’s author name |
| user_password | String | null | A user who has the password will be able to view the document and perform operations allowed by the permission options |
| owner_password | String | null | A user who has the password will have unlimited access to the PDF, including changing the passwords and permission options. |
| no_print | Boolean | false | When set to true, printing will be disabled. |
| no_copy | Boolean | false | When set to true, the possibility to copy any text will be disabled. |
| no_modify | Boolean | false | When set to true, the possibility to modify the document will be disabled. |