How to make People Picker column Read only in SharePoint 2013 - sharepoint-2013

Question

I am trying to make people picker column in my list edit form "Read-only". I found many solutions that worked on SharePoint 2010 but couldn't find a reliable solution for SharePoint 2013/Office 365.
It would be great if someone can point me to a good solution.

Answer 1

To make People picker readonly, you can use the below JQuery code:
$(".sp-peoplepicker-delImage").css({ 'display' : 'none'});
$(".sp-peoplepicker-editorInput").css({ 'display' : 'none'});
You can also apply them with the help of css:
<style>
.sp-peoplepicker-delImage{
display:none;
}
.sp-peoplepicker-editorInput{
display:none;
}
</style>
This is the easiest and fastest way to make people picker fields read only in SharePoint
2013/online, but it will make every people picker field on the form read only. So please let
me know if you want for a specific column.

Answer 2

Since in SharePoint 2013 for rendering List Forms was introduced a new client side rendering engine (called CSR) that is based on JavaScript/HTML i would recommend the following approach. To customize edit form in order to render People Picker in edit form using display mode as explained below.
Steps
1) Create a JavaScript template for rendering People Picker in display mode:
SP.SOD.executeFunc("clienttemplates.js", "SPClientTemplates", function() {
SPClientTemplates.TemplateManager.RegisterTemplateOverrides({
Templates: {
Fields: {
"AssignedTo": {
EditForm: renderAssignedTo
}
}
}
});
});
function renderAssignedTo(ctx) {
var item = ctx['CurrentItem'];
var userField = item[ctx.CurrentFieldSchema.Name];
var fieldValue = "";
for (var i = 0; i < userField.length; i++) {
fieldValue += userField[i].EntityData.SPUserID + SPClientTemplates.Utility.UserLookupDelimitString + userField[i].DisplayText;
if ((i + 1) != userField.length) {
fieldValue += SPClientTemplates.Utility.UserLookupDelimitString
}
}
ctx["CurrentFieldValue"] = fieldValue;
return SPFieldUserMulti_Display(ctx);
}
2)Open Edit Form page in edit mode
3)Place Script Editor web part on the page and insert the specified template by enclosing it using script tag
That's it.
Result
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