Have you had such an experience that when you want to print others article, you are required to input the password or you are absolutely refused to do that? That because the writer has secure a PDF, by doing this they can protect the PDF files from being copied, printed and changed.
If you want to secure a PDF and don't know how to secure PDF, let's try it together!
$27.00
Preparation: Download the PDF file security, launch it.
Chooe the Batch PDF Documents Security option, click "next" button to enter the PDF file list window.
Step two of secure a PDF is to add PDF files. Click "add" button, multiple files are allowed to input to the PDF File Security.
You can also remove and clear PDF files with the buttons on the right side of interface.
Click "next" to enter the edit window, you may set "security level" as "low" or "high", and set restriction of printing, copying and changing.
Note: In this window, you can also set the properities and expiry date.
After all the settings have been finished, click "save as" button, you may choose a folder to save the output PDF files. You can also click "save" directly to save the output PDF files instead of old ones.
OK. Just such an easy program you can secure a PDF, with this powerful PDF File Security, you can not only secure a PDF, but can also decrypt PDF files. what's important, please remember, if you don't know PDF passwords, PDF File Security can not find it for you.