Hide Created By and Modified By Bottom information from Display form or Edit form of SharePoint List using Jquery.

Step 1: Add HTML Webpart on Lists  Display or Edit form page. (Dispform.aspx)

Step 2: Add Following code into Source Editor of HTML Form Webpart.

<script type="text/javascript" src="../../Shared%20Documents/jquery-1.7.2.js"></script>

<script type="text/javascript" src="../../Shared%20Documents/jquery-1.7.2.min.js"></script>

<script type="text/javascript">

$(function () {

     HideBottomInformation();

 });

 function HideBottomInformation() {

    $('#onetidinfoblockV').css("display", "none");

    $('#onetidinfoblock1').css("display", "none");

    $('#onetidinfoblock2').css("display", "none");

    $('#onetidinfoblockV').hide();

    $('#onetidinfoblock1').hide();

    $('#onetidinfoblock2').hide();

}

</script>

Step 3: Save the Webpart and open Display form of list. The Bottom information hidden from display form.