BUG - Too easy to unlock PDF created by Adobe Acrobat Pro
A protected PDF can be easily unlocked by free online services. There is no protection for the company who buy this product because they are sensitive with the documents they create.
If you think to a catalogue everyone of your competitor can copy your images and everything in few seconds.
Martin Smith commented
To unlock PDF file security you can use PDF Unlock Tool A few days back I was also searching for the tool that can unlock and remove PDF restrictions. However, after a lot of searches, I came across this utility. It really helps me to remove restrictions from PDF documents and enable all PDF permissions. Visit the link & unlock PDF document; https://www.toolsground.com/pdf-unlock-tool/
I am trying to make Unlock PDF Tool running from a USB sticky. Until now I was able to extract all the necessary files to a folder name Unlock PDF Software I have figured out that the file that unlock PDF is the unlock PDF and it's a Windows command line file with the following link:- http://www.pdfunlocker.filefixutility.com/