Xpra: Ticket #2634: disable clipboard watermarks

When I copy an image to or from the clipboard using xpra, it has a one-line timestamp watermark that says:

via Xpra, 2020-03-11T19:09:21.131581

This was my local time (EDT) and was 12 seconds after the screen shot was made, probably referring to when Xpra copied it to my local system.

I would like this to be disabled by default (unless debug is on).

I can't find this with a quick search within the source code, nor can I find any references to this online except perhaps for the Xpra News summary for 3.0 Important Features (2019-09-20), which mentions:


  • HTML5 support for copying images: #2312 (with watermarking)

I'm using Debian Testing, xpra 3.0.6+dfsg1-1, on both sides.

Wed, 11 Mar 2020 23:27:12 GMT - adamhotep: attachment set

screenshot of bug

Wed, 11 Mar 2020 23:27:37 GMT - adamhotep: attachment set

xpra bug report output

Thu, 12 Mar 2020 03:03:06 GMT - Antoine Martin: status changed; resolution set

To disable the watermark, use:




The default will not be changed for now.

Thu, 12 Mar 2020 03:03:45 GMT - Antoine Martin: summary changed

(changing title: this has nothing to do with screenshots)

Thu, 12 Mar 2020 15:01:08 GMT - adamhotep:

Ah ha! I hadn't searched for the word "stamp" when I was looking for this.

I'll have to use a wrapper to ensure that variable is set when I invoke xpra.

Perhaps others with this issue who search for "watermark" will find this closed ticket. I recommend updating your documentation too, perhaps at Clipboard.

Thanks for your hard work on this project.

Sat, 23 Jan 2021 05:56:37 GMT - migration script:

this ticket has been moved to: https://github.com/Xpra-org/xpra/issues/2634