Prevent users from changing wallpaper

How To Prevent Users From changing Wallpaper
Go to Start->Run

Type Regedit and hit Enter

Navigate to

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies

Under “Policies” key, create a new key “System”.

Now Select “System” key and in right-side pane, create a new STRING value Wallpaper and set its value to the exact path of your desired wallpaper. You can use .JPG and .BMP files in this method.

e.g. if your wallpaper exists in “E:\Wallpapers\bike.JPG”, then set the same path as value as E:\Wallpapers\bike.JPG

Exit Registry

Now the Wallpaper cannot be changed by others.

How to convert a pdf docu to jpeg image in linux???

We would be in need of converting pdf to jpeg images frequent. But how this could be done in ours linux. I searched and had a solution as follows yaar:

It is possible to use pdftoppm and after ppmtojpeg.

First, choose your pdf document and use:

ppm file.pdf file

You will have one ppm image per pdf page. If you want only part of the document use -f int1 -l int2, int1 is the initial page and int2 is the final page.

Use the script to convert all ppm images into jpeg images:

for file in *.ppm; do ppmtojpeg $file > ${file/.ppm/.jpg}; rm $file; done

And thats it. You will have your pdf document into jpeg images.

Turn on Num Lock

If You want to turn on NUM LOCK by default,follow the below steps.

Goto Start Run->Regedit then hit Enter

Navigate to HKEY_USERS ->.DEFAULT ->Control Panel->Keyboard

In Right Pane Locate InitialKeyboardIndicators and right click select Modify

To Enable set the Data value as :2
To disable set the Data value as :0

Exit Registry