Prevent or Disable copy in Blogger

Disable Copy Installation

A- Navigate to your Blogger Dashboard >> Design >> Add a Gadget

>> HTML/JavaScript

B- Then Add The Following Code

<script type="text/javascript">
var omitformtags=["input", "textarea", "select"]
function disableselect(e){
for (i = 0; i < omitformtags.length; i++)
if (omitformtags[i]==(e.target.tagName.toLowerCase()))
return;
return false
}
function reEnable(){
return true
}
function noSelect(){
if (typeof document.onselectstart!="undefined"){
document.onselectstart=new Function ("return false")
if (document.getElementsByTagName){
tags=document.getElementsByTagName('*')
for (j = 0; j < tags.length; j++){
for (i = 0; i < omitformtags.length; i++)
if (tags[j].tagName.toLowerCase()==omitformtags[i]){
tags[j].onselectstart=function(){
document.onselectstart=new Function ('return true')
}
if (tags[j].onmouseup!==null){
var mUp=tags[j].onmouseup.toString()
mUp='document.onselectstart=new Function (\'return false\');\n'+mUp.substr(mUp.indexOf('{')+2,mUp.lastIndexOf('}')-mUp.indexOf('{')-3);
tags[j].onmouseup=new Function(mUp);
}
else{
tags[j].onmouseup=function(){
document.onselectstart=new Function ('return false')
}}}}}}
else{
document.onmousedown=disableselect
document.onmouseup=reEnable
}
}
window.onload=noSelect;
</script>

Then Click Save