[RESOLVED] adding a password to a pdf document via the fpdf library

Okay can generate my document via the fpdf extension but can't work out how to get a password onto the document.

Anyone got any idea how to go about this? May require a new extension I guess.

TIA

http://www.fpdf.org/en/script/script37.php
Not tested.

Spot on, bit of mucking around and it's rocking.

I created password protected pdf file using fpdf library. Now I want to open pdf file after auto fill password prompt. I want to hide password from users but registered users can access file after auto fill password prompt. How can i auto fill password promto using php.

If you’re using FPDF, it’s important to know that the core FPDF library does not support password protection by default. To add a password, you need an extended version of FPDF.

How to add a password using FPDF:

You can use the FPDF Protection script (often called fpdf_protection.php). It adds encryption features on top of FPDF.

Basic steps:

1. Download FPDF and the protection extension.

2. Include both files in your project.

3. Set user/owner passwords and permissions (print, copy, modify).

4. Generate the PDF as usual.

This works well for developers who want programmatic control and lightweight protection.

Alternative option

If you already have PDFs and want a quick, non-coding solution, SysTools PDF Locker is a reliable option. It lets you add user/owner passwords, restrict printing or editing, and secure multiple PDFs at once—no scripting required.