Splashtop supports text copy/paste via the clipboard. Currently, the copy/paste functionality supports up to 16KB of text for the clipboard.
Images are not supported for copy/paste across devices. If you want to transfer an image, best to use the file transfer feature. How do I transfer files?
I had a serial number that I was trying to copy from a remote host to my local PC, but even though I "copied" it on the remote end, it did not show up on my local clipboard to paste. I am sure that this was text only, and was only about 15 characters, which should be well under the 16KB limit.
@Mark
Sorry, there were some cases where copy/paste did not work. Fixes in 3.1.4.0 client app (purple icon) should resolve these issues. Let us know if you still have a problem.