價格：免費
更新日期：2019-07-03
檔案大小：45.9 MB
目前版本：0.99.70218
版本需求：需要 iOS 12.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
Ack is what parcel recipients can use to sign digital return receipts in the ProofShow system (https://www.proof.show), with the signatures meeting ETSI’s PDF Advanced Electronic Signatures (PAdES) standard.
Simply scan the barcodes on your parcels and press the Sign button to finish the signing with your email identity.
支援平台：iPhone