Once the URL of the image is copied. From your tools in the Visual editor, click on the button Image. Paste the address if the image and click on Insert;
The image will appear on the page with the original size. You can always modify the size and properties of your image:
- click on the image you want to edit, click on the Image button and modify the properties of your image
- double clicking the image and arriving at the edit screen
From here you can edit the advanced features or change the size, and add a link. Everything you need to edit your image is available here !