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.
