If there is an image you would like to use for your post, but don’t want to have to download it and re-upload it onto your site, you can use the image’s URL to embed the picture into your post.
First, find an image you would like to use. Right click on the image, and select “Copy Image ULR” (depending on your browser, it may say “Copy Image Address” or “Copy Image Location”).
Now, when you go back to the editor, you will go to “Add Media” and select “Insert from URL”. Right click in the address box, and select “Paste”. This will bring up a thumbnail for the link, and from here you can add some information for you image and adjust its post settings. When you are done, select “Insert into Post”.
Since the image is not actually on your server, you do not have full control over it. If someone changes or deletes the image from the original server, your image will be effected.
You can then either preview your post, or publish.