Author: dmzx
Special thanks to: martin
Extension Description:
Watermark automatically images by upload.
- Added forum exclude in ACP.
- Added warning if GD is active in ACP.
- Code update.
- Added support for webp images.
- Added code for check mimetype.
- Added orientation of watermark.
- Added position of watermark.
- Added transparency level for watermark.
Screenshots:
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
Extension Download:
- Download-link
- Watermark v1.0.4
- Download the latest release.
- Unzip the downloaded release, and change the name of the folder to `watermark`.
- In the `ext` directory of your phpBB board, create a new directory named `dmzx` (if it does not already exist).
- Copy the `watermark` folder to `/ext/dmzx/` if done correctly, you'll have the main extension class at
(your forum root)/ext/dmzx/watermark/composer.json - Navigate in the ACP to `Customise -> Manage extensions`
- Look for `Watermark` under the Disabled Extensions list, and click its `Enable` link.