WordPress popup plugin for easily create popup and modal window with any kind of content and settings.

Noted That:

To install correctly this modal-window.zip.
Fisrt Download the modal-window.zip to your computer
Extract/Open modal-window.zip to Your Computer.
Then, Find readme.txt file inside modal-window.zip and Open readme.txt.
Now, Read the Requirements of this plugin. Which Wordpress Version and PHP Version are required to run this Plugin in Your Wordpress Site.
Then, Follow the the Tips Below.

Start the Tips:

1. First Download "modal-window.zip" Plugin to your Local Computer. (Click Download)

2. Then, Login to your "yourdomain.com/wp-admin" Dashboard.

3. Then, Click on "Plugins" + "Add New" from left sidemenu of Dashboard.

4. Now, Click on "Upload Plugin" button.

5. Now, Browse "modal-window.zip" Downloaded plugin from your computer, Where you downloaded modal-window.zip According to Step – 1 Above then, click on "Install Now"

6. Now, Click on "Active Plugin"

7. Then, See left sidemenu. "Modal Window – create popup modal window" folder is added on left sidemenu. Now, Click on "Modal Window – create popup modal window" folder.

Noted that: If you do not see "Modal Window – create popup modal window" folder on left sidemenu then, see at left sidemenu "Settings" or "Tools".

8. Now you configure yourself oR Watch video tutorial below about Modal Window – create popup modal window Configurtions and Settings or How to work "Modal Window – create popup modal window" in your WordPress site.

After Activated Plugin According to Step-6 then,

Go to "Plugins" + "Installed Plugin" from Wordpress Admin Panel Leftside Menu.
or Direct go to: https://yourdomain/wp-admin/plugins.php
Then, Find "Modal Window – create popup modal window" Activated Plugin from Plugin List.
Then, Click on "Settings" from Plugin that is Modal Window – create popup modal window
Now, Edit/Add/Config the setting and Click on "Save Changes" button,

Guide

Guide
Installation option 1: Find and install this plugin in the `Plugins` -> `Add new` section of your `wp-admin` Installation option 2: Download the zip file, then upload the plugin via the wp-admin in the `Plugins` -> `Add new` section. Or unzip the archive and upload the folder to the plugins directory `/wp-content/plugins/` via ftp Press `Activate` when you have installed the plugin via dashboard or press `Activate` in the in the `Plugins` list Go to `Modal Window` section that will appear in your main menu on the left Click `Add new` to create your first modal window Setup your modal window Click Save Copy and paste the shortcode, such as [Modal-Window id=1] to where you want the modal window to appear. If you want it to appear everywhere on your site, you can insert it for example in your `header.php`, like this:

Installation option 1: Find and install this plugin in the Plugins -> Add new section of your wp-admin
Installation option 2: Download the zip file, then upload the plugin via the wp-admin in the Plugins -> Add new section. Or unzip the archive and upload the folder to the plugins directory /wp-content/plugins/ via ftp
Press Activate when you have installed the plugin via dashboard or press Activate in the in the Plugins list
Go to Modal Window section that will appear in your main menu on the left
Click Add new to create your first modal window
Setup your modal window
Click Save
Copy and paste the shortcode, such as [Modal-Window id=1] to where you want the modal window to appear.
If you want it to appear everywhere on your site, you can insert it for example in your header.php, like this:

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Reffered: https://wordpress.org/