Sign and seal your PDF documents


Buy your KEYMO

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A physical stamp to sign and seal your PDF documents.

Download the app


A PC/Mac, tablet and smartphone compatible application to configure and download your documents, with free updates

Activate your item


Customise your KEYMO with the information you want, logo, signature, etc.

Stamp and sign


Once your KEYMO has been activated, you can use it as often as you like.

Buy your KEYMO

One KEYMO, one application, that's all you need. No subscription required,
for an unlimited number of uses.

They talk about us :

Our pricing policy aims to democratize the electronic signature. Through the use of the KEYMO digital stamp, we seek to make the dematerialization of the signature and the ink stamp accessible in the continuity of the stamping gesture well known by all and at an attractive cost. Most of the signature and authentication technology is deported to the KEYMO stamp itself and allows us to offer a disruptive pricing model based solely on the purchase of the stamp.