: Many versions utilize high-level encryption like 128-bit or 256-bit AES to ensure that once a password is set, it is virtually impossible to bypass without the key.
If you do not have a specific installer for version 1.5.0, similar functionality is built into most operating systems and professional suites: PDF Protector 1.5.0
Password protect PDF and encrypt a PDF for free | Acrobat - Adobe : Many versions utilize high-level encryption like 128-bit
: The software allows users to disable specific actions such as printing, copying text, or modifying document content. or modifying document content.