> For the complete documentation index, see [llms.txt](https://docs.sirplugin.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sirplugin.com/getting-started/master.md).

# 1. Installing Smart Image Resize Pro

{% hint style="warning" %}
**Heads up!** Before installing Smart Image Resize PRO, make sure you deactivate the free version if already installed.
{% endhint %}

1\. Click the button "**Download"** in your purchase confirmation email to download the plugin zip file to your computer.

{% hint style="info" %}
Didn't receive your purchase confirmation email? [Log in to your account](https://sirplugin.com/myaccount) to access your license key and download link.
{% endhint %}

![](/files/PEvOiLn7aFd9s68hJIw2)

2\. In your WordPress admin, go to *Plugins → Add New.*

![](/files/eomaccoa51RZDMQHoDa6)

3\. Click the **"Upload plugin"** button, choose the zip file you've just downloaded, and click the **"Install Now"** button to start installation.

![](/files/D8EgjRXg5iWWAnDQqlNP)

4\. Finally, click the button **"Activate Plugin"**.

![](/files/RWIuGubPfubdCEaAjvwk)