pdf lock

pano po mag lock ng pdf?

http://www.restrictpdf.com

Step I - After launching Restrict PDF software, Click on Browse button to select PDF document.

Step II - As you click on Browse button, you will arrive at Open window to select PDF files.

First Select PDF file and then Click on Open button.

Step III - After choosing & selecting PDF file, Choose Security Settings.

If you need to add user password to PDF file, then check Add password to PDF Document option. Fill password of you choice.

If You need to applu restrictions on PDF files, the check Add restrictions of PDF option.

Then finally Click on Apply Setings button.



Step IV - Then after the process of applying restrictions of PDF, See Action History column for saving information (path where the restricted PDF file is being save).

By default Restrict PDF Software will save the restricted PDF in same location as the location of source PDF file.



The after performing the above instructed steps, Click on Exit button to close the Restrict PDF program.

try this also.
use adobe acrobat professional

1- open you pdf file
2- click the secure icon on the toolbar, choose encrypt with password,
-click yes
3- you have two option for security, select which applies to your need
- password to open
- password to print and edit data and or password to
copy text and images
4. click ok hen save your pdf file.