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Electronic signtature has never been easier
Try it, It's free!
Electronically sign the invoices, budgets or delivery notes
Send your invoices signed electronically to your clients
An electronically signed document offers the following guarantees:
It is guaranteed that nobody has been able to alter the document since its signature.
It is guaranteed that the document has been issued by the person signing it, or if it is signed by a third party, that the latter acts as guarantor of the integrity thereof.
When coming signed, the document will not be rejected due to doubts about its origin.
Sign your invoices, quotes or delivery notes or any other file
You can sign both the invoices, budgets or delivery notes that you issue with the program, as well as any other document stored in the virtual disk. All of them natively.
Sign PDF documents electronically
When your client opens the PDF with the Adobe Reader program, you will be notified that it is signed, showing it by whom and the date of the signature, as well as whether it is valid or not.
Sign Word or Excel documents electronically
When your client opens the Word or Excel document, the program will notify you that it is a final version signed electronically. If the client wants to modify it, he will lose his signature.
What are you waiting for?
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What is Contasimple
Screenshots of the tool
To whom is Contasimple aimed?
Countries and regions
Help and tutorials
Contasimple mobile version
Other links of interest
Frequently asked questions - FAQ
Terms and Conditions
Documentation for integrators
Google Chrome Web Store
United States of America
is a product of
C / Travessera de les Corts, 340 Entlo 3ª, 08029 Barcelona, CIF B67119594, T 932 933 806
Contasimple S.L. is a company registered in the Mercantile Registry of Barcelona in volume 46203, folio 76, sheet B-512849, inscription 1.
The Contasimple Database is registered with the Spanish Data Protection Agency, as required by the LOPD under the registration code