Adastamp vs PDF embeded (Adobe) Comparison Table

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Feature
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AdaStamp
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PDF embedded (Adobe)
Compliant with legal regulations and be accepted by courts With QES device used Yes
Integration with smart contracts Yes No
Signature visible in a document Yes(M2) Yes
Storage of documents Yes No
“Decentralized storage” Yes N/A
Sharing of documents Yes File sharing only
Notifications Yes No
Signing workflow Yes No
Document templates Yes No
Filling forms Yes No
Open-source solution Yes No
Long-term signatures Yes Yes

One of the most widely used solutions is Adobe Acrobat's built-in functionality to sign PDF documents. It requires a certificate - to be compliant with legal regulations and be accepted by courts, it has to be an Advanced or Qualified Electronic Signature (AES or QES), as defined by eIDAS (electronic IDentification, Authentication and trust Services) European Union regulation, and United States' UETA Act and E-Sign Act. One of the nice things is that the signature is stored within the PDF document that is being signed and can be rendered on the document. However, there is no storage of documents nor sharing/transferring between participants. On the contrary, AdaStamp offers storage and sharing of documents but does not allow for visible signatures inside a document.