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If you are asking whether CKEditor currently supports HTML5 canvas element, then the answer is: No.We have recently started introducing support for HTML5 elements to the editor, though, and the list of elements that are already supported will surely grow. You can also add a feature request for this on our Development site to see if it gains some support from other users and track this issue.As for plugins, I don't know if any such solutions exist, but you are most welcome to create it and share with the community.
Documentation Manager, CKSource
See CKEditor 5 docs, CKEditor 4 docs, CKEditor 3 docs, CKFinder 3 docs, CKFinder 2 docs for help. Visit the new CKEditor SDK for samples showcasing editor features to try out and download!
Re: How Can I draw a Circle inside the editor
If you are asking whether CKEditor currently supports HTML5 canvas element, then the answer is: No.
We have recently started introducing support for HTML5 elements to the editor, though, and the list of elements that are already supported will surely grow. You can also add a feature request for this on our Development site to see if it gains some support from other users and track this issue.
As for plugins, I don't know if any such solutions exist, but you are most welcome to create it and share with the community.
Documentation Manager, CKSource
See CKEditor 5 docs, CKEditor 4 docs, CKEditor 3 docs, CKFinder 3 docs, CKFinder 2 docs for help.
Visit the new CKEditor SDK for samples showcasing editor features to try out and download!