Hello Adam
If you’re specifically talking about Google Docs, it’s not possible to our knowledge since their change:
I don’t know if it would be possible for Discourse to be able to paste Base64 images as regular images in a post. That could be worth a post on feature I guess.
As a practical example, if we have a Google Doc (Test Discourse base64 image - Google Docs) and we copy all of it, here’s the Windows 11 clipboard content according to Clipview (Windows clipboard raw viewer)
Version:0.9
StartHTML:0000000105
EndHTML:0000001659
StartFragment:0000000141
EndFragment:0000001623
<html>
<body>
<!--StartFragment-->
<meta charset="utf-8">
<b style="font-weight:normal;" id="docs-internal-guid-86b76b06-7fff-94b7-4ff6-2d981c2951e9">
<p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;">
<span style="font-size:11pt;font-family:Arial;color:#000000;background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre;white-space:pre-wrap;">test</span>
</p>
<p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;">
<span style="font-size:11pt;font-family:Arial;color:#000000;background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre;white-space:pre-wrap;">
<span style="border:none;display:inline-block;overflow:hidden;width:10px;height:10px;">
<img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAAKCAYAAACNMs+9AAAAAXNSR0IArs4c6QAAAExJREFUKFNj/M/A8J+BCMAIU8j4Abvq/wIQcbBCkCKQALpimBiYhikE6UJWjMFGVghTDLYKySkYJhKtkCirifIMupuQAwoleIgIbwYADG839985eBAAAAAASUVORK5CYII=" width="10" height="10" style="margin-left:0px;margin-top:0px;" />
</span>
</span>
</p>
<p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;">
<span style="font-size:11pt;font-family:Arial;color:#000000;background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre;white-space:pre-wrap;">img</span>
</p>
</b>
<br class="Apple-interchange-newline">
<!--EndFragment-->
</body>
</html>