Certifying my documents 求教啊！

archon450878UID: 3587971

universityadmissions上看到这个

the name and address or provider/registration number (where applicable) of the certifying officer. This must be printed legibly (able to read) below the signature or in the stamp. It must be possible for University Admissions in Sweden to contact the certifying officer if necessary. A stamp stating only "True copy certified" will not be accepted.

是啥意思，材料盖完章还要签字和联系方式？？！不是教务处盖完章就OK了吗
求助啊

KaraThraceUID: 3495340

正常的由公证处出具的公证件上面会有公证人的姓名、所在单位和联系方式的...
如果是用学校盖章的文件，必须是双语且信封得是密封的，以证明这份文件的确是由教务部开具的。