Hi, I want to select and add files only office files like word excel powerpoint, and pdf and images like jpeg, png, gif form the input. And also the size should be max 20 mb. class = "btn btn-primary" > "file" id= "btnAtch" name= "CollFiles" multiple/> In Script: $(document).ready( function () { $( '#btnAtch' ).change( function () { }); Don't know what have to do.. Please help

Hi Rohan.. Use below code : $(document).ready( function () { $( '#btnAtch' ).change( function () { var files = $( this )[0].files; var val = $( this ).val().toLowerCase(), regex = new RegExp( "(.*?)\.(docx|doc|pdf|xml|bmp|jpe?g|png|gif|ppt|xlsx|xls)$" ); if (!(regex.test(val))) { $( this ).val( '' ); alert( 'Please select correct file format, Only Image, PDF and Office files Allowed..' ); } else if ($( this )[0].files[0].size/1024/1024 > 20) { $( this ).val( '' ); alert( 'Please select correct file Size, Max 20 MB size Allowed..' ); } }); });