Truefy

<a href="https://embed.truefy.ai/" rel="nofollow ugc">Truefy Embed</a> allows you to invisibly watermark images uploaded to the WordPress Media Library or a WordPress Post. 
The Plugin will also directly sync the changes in Image Caption from WordPress to Truefy Embed 
Once uploaded, you can view them in the Image library in Truefy Embed Website, where you can add or edit the critical details like Image Capture Datetime, Publisher Details etc.
For more information, check out <a href="https://embed.truefy.ai/integrations/wordpress" rel="nofollow ugc">plugin page</a> or email us at support@truefy.ai
You can check Truefy Embed’s Terms of Service at <a href="https://embed.truefy.ai/legal/tos" rel="nofollow ugc">ToS Page</a>
<h4>Features include:</h4>
<ul>
<li>Auto Invisible Watermarking – Images uploaded to Media Library or a Post can be automatically invisibly watermarked</li>
<li>Manual Invisible Watermarking/De-Watermarking – Images can be manually watermarked, and even be de-watermarked</li>
<li>Image Caption Syncing – Captions added for Images in Media Library or Post Caption, are directly synced to Truefy Embed Servers</li>
</ul>

Truefy Embed

Truefy Embed's proprietary AI invisible watermarking technology secures your images by allowing you to add critical details directly into the pix …

ip4368

This plugin allows to add a watermark on the images uploaded.
It make use of .htaccess, so all images that are uploaded or to be upload will all have the watermark. Your source images will not be affected, and after you delete/deactivate your plugin, all watermark will disappear. This plugin also work with @2x images that use on retina display or high resolution screen devices.
With this plugin, you may :
<ul>
<li>change the size of the watermark proportion to the images width.</li>
<li>change the opacity of the watermark, you are recommended to upload a png with solid color, as you may adjust the opacity after you upload.</li>
<li>(soon)set the position of the watermark and the offset position.</li>
<li>(soon)choose repetitive mode to display your watermark.</li>
<li>(soon, but later)choose the path that images in that path will have watermark.</li>
</ul>
The watermark is only visible if you try to download/view the images from a web browser.
You have to know that :
<ul>
<li>you need to be able to create a htaccess file in your uploads directory.</li>
<li>you need the GD library.</li>
<li>works only with JPG/JPEG/PNG files.</li>
</ul>
Available languages in :
<ul>
<li>English</li>
</ul>

htaccess Watermark

This plugin allows to add a watermark on your images uploaded.

Truefy Embed vs htaccess Watermark