Documents must often be signed in front of office managers with special seals called " hanko" .

文件通常必须在办公室经理面前签名，上面有被称为" hanko" 的特殊印章。

Such seals, or hanko, are still commonly used in Japan in place of signatures on official documents and contracts.

在日本仍然常用这样的印章（hanko）在官方文件和合同上代替签名。