The present article will show how it is possible to create a custom hyperlink that will download an image without its annotations. 

• In the present context, the Visualforce Page is launched from a custom lightning action found on the record page of the Contact Object. The screenshot below shows the custom action being executed.

• Upon clicking on an image's thumbnail the Download Image hyperlink appears.

• When clicking on the Download Image hyperlink, the image which is being currently viewed is downloaded without its annotations.
• Hence, the resulting image downloaded is like the one shown below.