1) The standard size of the signature file is 5*2, and it will be compressed by Baidu if it is larger than this size.
2) The minimum size of the post head is 11*11 and the maximum is 4*4.
3) Baidu Post Bar posts pictures, which are usually compressed if they are too big. It's not Baidu's picture address, the picture is compressed by the system, so you can't click to see the original picture. Therefore, it is recommended to send pictures, and it is best to use the picture link of Baidu address.
If the landlord doesn't have Baidu space, he can activate Baidu space first, upload the picture to Baidu space album, and then copy the link of the picture and post it in the post bar, so that after the picture is compressed, he can click to see the original picture.
If you want pictures to be searched by Baidu Photo Gallery, you can create an album and add a user name to the album name. After about 3 days, the pictures in the album will be searched.
I have encountered similar problems before, so my friend explained it to me, hoping to help the landlord.