The picture of Baidu signature file can only be signed in Baidu Tieba. You can make it as follows:

1. Log in to your Baidu account, as shown below; after entering the Tieba window, enter Move the mouse to the button to the right of the nickname, and a drop-down list will appear. Click the "Post Bar Settings" button inside.

Second, open the Tieba settings window, click "Add a set of signature files" in this window, and the corresponding window will pop up;

In the pop-up window, there will be "Limited quotations" Tieba, pictures of the space” description.

Third, this picture can be made in advance

and then uploaded to the post bar or space, and then quoted into the Baidu signature file.