As you may already know, Google Ads is reluctant when it comes to uploading banners that have integrations consisting of custom fonts, reason for which we developed our own solution to the problem, allowing our users to widen their typographic perspective.
All you need to do is to check "Convert custom fonts to SVG" option right before saving the banner.
What's the purpose of SVG conversion?
It's converting your actual custom font text into an SVG file, and that will make your banner 100% Google Ads compatible but also save some size space for the HTML5 package.
Obviously, this feature is only available if you're using custom fonts. But if you have a ton of text in the banner and you're not planning to use it on Google Ads, you can uncheck the option whenever you want.