Is there a short code for this plugin?

Yes, Short Code option available from plugin version 14.0

how to add it?

Short Code: [email-newsletter-plugin]

You can use this short code in posts and pages..

It’s not working. I added widget in widget area , here it’s working fine. But I can’t call this in my footer. I tryed like following,

<?php echo do_shortcode('[email-newsletter-plugin]');  ?>
<?php eemail_show(); ?>
<?php echo eemail_show(); ?>

But no use. subscribe button is not showing.

This short code is only for posts and pages not for PHP file.

<?php eemail_show(); ?> This code should work in PHP file. if you see image button, please check button image path.

if i put <?php eemail_show(); ?> code, nothing is showing. Then how i can see image path?

Follow up question- after I use the widget once (i.e., in sidebar) I do not see it available for second use (footer, etc.). Am I just reading this wrong, or is it only usable once?

We can use widget only once. yes short code available for this plugin. Please check the link for short code.

https://www.gopiplus.com/work/2010/09/25/email-newsletter/

Thanks, I have one follow up question.

I downloaded a PHP widget plugin, and tried entering your PHP code provided to it. It does not work, sorry if this is elementary but any insight on why that does not work?

I am attempting to insert the short-code OR PHP code in to a Widget on a footer. It is already inserted in to my sidebar.

For reference: https://www.worldcelebrationblog.com.