Hello, you can send the picture to be signed to Baidu Space Album
and then enter the album to open the picture
and click on the upper right corner-operate the link that was originally copied
to be signed.
But there is a BUG
You can just change "bdimg" to "baidu" in the link.
I hope it can help you.
If you are satisfied with my answer, please click the satisfactory answer button below my answer.