Thanks for your comment.
Plugin uses a WP_Image_Editor class which has been added since 3.5 – http://codex.ww.wp.xz.cn/Class_Reference/WP_Image_Editor
I’ve moved this files to plugin directory and it’s included when WP version < 3.5.
Please check it out.
Thank you for looking into this for me! It installs now, and the settings page actually lists my custom image sizes, which is an improvement on every other plugin I’ve tried. I am getting errors when I try to upload new images now:
Warning: imagealphablending(): supplied argument is not a valid Image resource in /public_html/wp-content/plugins/smart-watermark/image-editor.php on line 15
Warning: imagesavealpha(): supplied argument is not a valid Image resource in /public_html/wp-content/plugins/smart-watermark/image-editor.php on line 16
Warning: imagecopy(): supplied argument is not a valid Image resource in /public_html/wp-content/plugins/smart-watermark/image-editor.php on line 19
These repeat a few times, I’m assuming for every image size I have set to be watermarked.
I wasn’t really sure whether to respond here or open a new thread- technically, the installation issue is resolved.
Could you send me several images you have tried to upload at [email protected]?