Not all documents need to have electronic stamps, here are some documents that need to use electronic meterai:
Memorandum of Understanding (MoU), letters of recommendation, power of attorney, other related documents
Notary deed and grosse (original copy of original deed)
Deed of PPAT and its settlement
Securities in any name or form
Securities transaction documents in any name or form, including futures contract transactions
Tender documents, including quotations, minutes, compensation and Grosse
Documents stating the amount of money greater than 5 million rupiahs, which mentions receipt of money or contains payment of acceptance or repayment of debt, in whole or in part
Other documents as referred to in the Stamp Duty Law