I mentioned a cool tool yesterday called pdftk that I use at my day job to merge multiple PDF documents into a single PDF. Well that isn’t all pdftk can do! You can also use it to password protect PDF files for better security!

Let’s say I have a PDF called sensitive.pdf with information I don’t want anyone to see. I can protect it with a password by running the following command via the terminal:

#pdftk sensitive.pdf output protected.pdf user_pw SuperS3cr3tPW2014

If you aren’t following the command above you input the original PDF (sensitive.pdf) and output a new PDF called protected.pdf and assign it the password SuperS3cr3tPW2014.

Now you can delete the original file and you can keep the new password protected PDF

Categories: LinuxTech Tips

Leave a Reply

Your email address will not be published. Required fields are marked *

Related Posts

News in IT

Comcast blocking Torrents?! – here's a solution

I noticed I could no longer download anything from my favorite torrent client FrostWire.  Upon further research, it appears Comcast is implementing technology to block this traffic.  Sparing you the technical details, you can use Read more…

Tech Tips

Wired internet without running wires- Ethernet over power lines

I recently implemented this at my house where running a physical ethernet cable for internet was not possible but required for a workstation my wife needed for work.  You plug this into your router and Read more…


SharePoint 2013- URLs you need to know

(Remember for SharePoint 2013 you might want to add “15” after “/_layouts/” but if you don’t SharePoint will take care of that for you) .. Also some of these are turned off on Office 365 Read more…