Adobe Acrobat is a family of application software and Web services developed by Adobe Systems to view, create, manipulate, print and manage files in Portable Document Format(PDF). Here is the instruction to tell you how to add signature in Adobe Reader.

1. Open file you need to add signature with Adobe Reader.

2. Go to “View—-Sign—–Place Signature”.

3. In fact, there are four methods to place the signature:

1) “Type my signature”

2) “Use a webcam”

3)”Draw my Signature”

4) “Use an image”

4. Choose one method and click “Accept”. Now the signature you’ve made will show at the cursor. You could also delete the signature by right clicking on the signature so that you could recreate one. Just go to “View—-Sign—–Clear saved signature”, and repeat the steps above.

Opera is  easy to access the Internet and absolutely secure, which has powerful extensions, covers the basics with tabbed browsing, mouse-over previews, a customizable search bar, advanced bookmarking tools, and simple integration with e-mail and chat clients. However many ads in the website would be so annoying. Here is the instruction to tell you how to block ads in Opera.

 

1. Click the Opera logo and then select “Settings”. Or you could click “Ctrl+F12” to visit it.

2. In the “Settings” window, click on the “Websites” tab then navigate to Pop-ups.

3. Select “Do not allow any site to show pop-ups”.

4. Now you’ve successfully block the ads in Opera.

 

In website, “Right Click” allows us to save the page, copy the page, print the page and so on. However, some website doesn’t permit tight click operation. How to deal with the situation? Mozilla Firefox is a fast, full-featured Web browser. Here is the instruction to tell you how to disable “no right click” scripts in Firefox.

 

1. Type about:config in the address bar, click “Enter.” Doing this is to open the Firefox Configuration page. But you need to confirm that you understand that changing settings could result in Firefox not working properly. So you’d better backup your browser data in case you lose them.

2. Find the control. Type context into the Search bar. Find preference name listed as “dom.event.contextmenu.enabled” and double-click to toggle it to “false”.

3. After this, go to the website that you can’t right click, you may still receive a message about right-clicking not being allowed, but the right-click menu should appear after you close the message.