Description
Thenaynhe Watermark stamps a watermark image (such as your logo) onto JPEG and PNG images at the moment they are uploaded to the WordPress Media Library. There is nothing to do per image: configure it once and every new upload is watermarked automatically.
The plugin uses the PHP GD library that ships with most hosting environments, and it preserves the transparency of a PNG watermark while still letting you set a global opacity.
Features
- Add an image (logo) watermark to JPEG and PNG uploads
- Nine placement positions (corners, edges and center)
- Adjustable watermark size, expressed as a percentage of the main image width
- Adjustable opacity from 0% to 100%
- Configurable edge margin
- Skip images below a minimum width so small thumbnails are left untouched
- Transparent PNG watermarks are kept transparent
- Simple settings screen with a Media Library picker
Good to know
- The watermark is written onto the uploaded file, so it cannot be removed later. Test with a sample upload first.
- Only the original uploaded file is processed. The intermediate thumbnail sizes that WordPress generates are not watermarked.
- This version supports JPEG and PNG uploads. Text-only watermarks and WebP input are not supported yet.
Screenshots
Installation
- Upload the plugin files to the
/wp-content/plugins/thenaynhe-watermarkdirectory, or install the plugin through the Plugins screen in WordPress. - Activate the plugin through the Plugins screen.
- Go to the Watermark menu in the admin sidebar.
- Turn on Enable watermark, choose a watermark image, set the position, size and opacity, then save.
- Upload an image to confirm the result.
FAQ
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Which image formats are supported?
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JPEG and PNG uploads are watermarked. A transparent PNG is recommended for the watermark image itself.
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Does it watermark images that were uploaded before installing the plugin?
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No. Only new uploads are processed. Existing images in the Media Library are left unchanged.
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Will it watermark every thumbnail size?
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No. Only the original uploaded file is watermarked. The smaller sizes WordPress generates are not touched.
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The watermark does not appear. What should I check?
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Make sure the PHP GD library is enabled on your server (the settings screen shows a warning if it is not), that a watermark image has been selected, and that the uploaded image is wider than the “skip images smaller than” value.
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Can the watermark be removed after upload?
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No. The watermark is composited into the file, so keep an unwatermarked copy of important images.
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Contributors & Developers
“Thenaynhe Watermark” is open source software. The following people have contributed to this plugin.
Contributors
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Interested in development?
Browse the code, check out the SVN repository, or subscribe to the development log by RSS.
Changelog
1.0.0
- Initial release.