wpnovate

This plugin provides a complete solution for optimizing images in WordPress. 
It automatically: 
1. Resizes large images to a maximum width/height. 
2. Converts images to WebP format for faster loading. 
3. Adds Watermarks (Text or Image) to protect your content. 
4. Offloads images to Cloudflare R2 storage to save server space and bandwidth.
<h3>Configuration</h3>
<ol>
<li>General Settings: Set the maximum width/height for images and enable WebP conversion.</li>
<li>Watermark Settings: Choose between Text or Image watermark, set the content, position, and opacity.</li>
<li>Cloudflare R2 Settings: Enter your R2 Endpoint, Access Keys, Bucket Name, and Public Domain.</li>
</ol>
<h3>External Services</h3>
This plugin optionally connects to Cloudflare R2, a cloud object storage service provided by Cloudflare, Inc.
<h4>Cloudflare R2 Storage</h4>
What it is used for: 
When enabled, this plugin offloads your uploaded images to your Cloudflare R2 bucket. This helps reduce server storage usage and can improve image delivery performance through Cloudflare’s global network.
What data is sent: 
– Image files (after processing/optimization) are uploaded to your R2 bucket 
– No personal user data is collected or transmitted
When data is sent: 
– Only when you enable the “R2 Offload” feature in the plugin settings 
– Only when new images are uploaded to your WordPress media library 
– Images are sent to the R2 endpoint URL that YOU configure in the settings
Service provider: 
This service is provided by Cloudflare, Inc. 
– <a href="https://www.cloudflare.com/terms/" rel="nofollow ugc">Cloudflare Terms of Service</a> 
– <a href="https://www.cloudflare.com/privacypolicy/" rel="nofollow ugc">Cloudflare Privacy Policy</a>
Note: You must have your own Cloudflare account and R2 bucket. The plugin uses YOUR credentials (Access Key, Secret Key, Bucket Name, Endpoint) that you provide in the settings. No data is sent to the plugin developer.

Imagero – Auto Image Optimizer & Watermark with R2 Offload

Automatically resize, convert to WebP, and watermark uploaded images. Optionally offload to Cloudflare R2.

MyWebsiteAdvisor

ChrisHurst

This plugin allows you to Automatically add a watermark to all images as they are uploaded to the WordPress Media Library. 
The plugin uses PNG watermark images with transparency for precise control over the appearance of the watermarks. 
This plugin also supports simple text watermarks with adjustable color, size and transparency. 
The user friendly settings page allows for control over the appearance of your watermark. 
The watermark preview feature allows for easy testing of the plugin settings. 
The watermark size is controlled as a percentage of the target image, 50% means the watermark will be half the width of the target image. 
Watermarks are now removable with the new backup system, any images watermarked while the new backup system is enabled are able to be restored to the original image.
<a href="http://MyWebsiteAdvisor.com/plugins/transparent-image-watermark/" rel="nofollow ugc">Upgrade to Transparent Watermark Ultra</a> for advanced 
watermark features including:
<ul>
<li>Manually Apply Watermarks to Images Previously Uploaded</li>
<li>Fully Adjustable Image Watermark Position</li>
<li>Fully Adjustable Text Watermark Position</li>
<li>Adjustable JPEG Image Output Quality</li>
<li>Highest Quality Watermarks using Image Re-sampling rather than Re-sizing</li>
<li>Lifetime Priority Support and Update License</li>
</ul>
Check out the <a href="http://www.youtube.com/watch?v=fEhZK1U8W94" rel="nofollow ugc">Transparent Image Watermark for WordPress video</a>:
<iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/fEhZK1U8W94?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&hd=1&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe>
Developer Website: http://MyWebsiteAdvisor.com/
Plugin Support: http://MyWebsiteAdvisor.com/support/
Plugin Page: http://MyWebsiteAdvisor.com/plugins/transparent-image-watermark/
Compare Watermark Plugins: http://MyWebsiteAdvisor.com/tools/wordpress-plugins/watermark-plugins-for-wordpress/
Video Tutorial: http://mywebsiteadvisor.com/learning/video-tutorials/transparent-image-watermark-tutorial/
Requirements:
<ul>
<li>PHP v5.0+</li>
<li>WordPress v3.3+</li>
<li>GD extension for PHP</li>
<li>FreeType extension for PHP</li>
</ul>
To-do:

Transparent Image Watermark

Automatically watermark images as they are uploaded to the WordPress Media Library.

Imagero – Auto Image Optimizer & Watermark with R2 Offload vs Transparent Image Watermark