Personalized image download for a specific size/format

The present article will show how it is possible to create custom hyperlinks that will download the same specific image but in different sizes, namely:

• Full corresponds to a size of 1920 x 1280 pixels.
• Thumbnail corresponds to a size of 200 x 200 pixels.
• Mini corresponds to a size of 100 x 100 pixels.

Info:

The Visualforce Page and Apex Class used in the present article can be found on GitHub by following this link: https://github.com/SharinPix/demo-apex/tree/personalized-size-download

• 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, several hyperlinks appear. Each of these hyperlinks downloads the current image in a different size.

• Upon clicking on the Download full Image hyperlink, an image of size 1920 x 1280 pixels is downloaded.

• Upon clicking on the Download thumbnail Image hyperlink, an image of size 200 x 200 pixels is downloaded.

• Upon clicking on the Download mini Image hyperlink, an image of size 100 x 100 pixels is downloaded.