Hello, you upload the picture to be used as a signature file to the Baidu Space Album

Then enter the album to open the picture

Click the upper right corner--Operation

The copied link can be used as a signature file.

But there has been a bug in the Tieba system these days

Just change the "bdimg" in the link to "?baidu?"

Hope it helps If you

are satisfied with my answer, please click the Select Satisfactory Answer button below my answer.