How Do I Get The Watermark Text Onto The Image And Displayed Accordingly In Html Email?

I supposed to put watermark text diagonally onto the image which both input submitted via google form. But before I create the gform, I want to test first whether this is possible

Solution 1:

Unfortunately Gmail HTML is not as inclusive as normal HTML

Here is a list of supported CSS properties in Gmail.

So you will have to use a different kind of CSS to make it work, or try a workaround, such as generating an image in a separate HTML instance and then exporting it as an image to drive and then attaching it as an image to the mail.