When you launch SysInfoTools PDF
Protect & Unprotect software, the window shown below
pops up. To protect a PDF file, following steps are required:
Step 1: First of all, select Protect PDF
file option to protect a
PDF file. Click Next
to contine the process.
2:Now clickSelect single PDF file
path option to select the PDF file that you want to protect. You can may select multiple files at a time.
Step 3: Make sure the PDF file you are going to select,
is not corrupt. Click OK
to confirm it.
4:Select the PDF file from the list. Click
Open to confirm your file selection.
5:The selected PDF file will be shown in the edit
box. Click Next to continue the process.
6:The description of the selected PDF file will be
displayed here. Click Next to continue the process.
Step 7: Now select the Output PDF Security
Settings, i.e. encryption level, user
password, owner password and security
Step 8: Once you are done with this,
click Next to continue the process.
Step 9: You can modify the
Output PDF File Description. Once you are done with
this, click Browse to select a location.
Step 10: Select a location at where
you want to save the new PDF file. Click OK to
confirm your location.
Step 11: Now click Protect
PDF button to start the PDF protect operation.
Step 12: Within a few seconds, PDF
protection process will be completed. Click OK .