Hi dear friends!
I want all uploads by members watermarked. How can I do it? I guess it was something usual for long time. Because I don’t want any one to grab photos from my website and use as theirs. Could you tell me how? Thanks.
Why don’t you watermark the images and uploads manually? I do that when I need to. 
Discourse is a community script. What do you mean manually one by one?
Would the photos have a different watermark for each user? That’s been discussed before and it would be very expensive.
A general watermark for the website would be easier, but there’s no plugin that exists at the moment to do it.
At the moment there is a setting called prevent anons from downloading files that will prevent some image access, but a technically savvy user can circumvent it.
Thank you for your reply. I saw it. I only need general static watermark for photos. I hope soon we can have it.
我也对这项功能很感兴趣。目前已经有实现方法了吗？
我建议您尝试使用 CDN 水印解决方案。它只会对缓存的图片添加水印，而不会处理原始上传的图片。这样不会占用您的系统资源，因此上传依然快速流畅。
请确保您也有权对图片添加水印。创作者保留其作品的权利，即使他们将其上传到某个地方。
如果某人上传了他们不拥有权利的内容，这一点更加重要。
是的，这确实很重要！我有个选项可以给图片添加水印，但那些图片不是我的 
，所以我从未使用过这个功能。它只通过 CDN 添加水印，因此原始的高分辨率照片仍然可以下载且不带水印。