Automatically watermark images as they are uploaded to the WordPress Media Library using Both Images and Text.
As of April 2026, Signature Watermark is a WordPress image plugin with 200 active installations and a 1.6/5 rating from 9 reviews. It has been downloaded 45K+ times in total. Requires WordPress 3.3+ and PHP false+. Available on WordPress.org since 2012. Last updated 11 years ago — may have compatibility concerns. Top alternative: Firelight Lightbox.
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 plugin can be configured to apply ‘text and image’, ‘text only’ or ‘image only’ watermarks.
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.
| WordPress | 3.3+ requiredTested up to 4.1.42 |
| PHP | false+ required |
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.