Legal
Terms and conditions of use
Last updated: April 30, 2026
These terms govern the use of SignBona (signbona.com), an electronic document signature platform. By signing up or using the service you accept these terms in their entirety. If you don't agree, please don't use the service.
1. Provider identification
The service is provided by SIGNBONA LLC, a U.S. limited liability company and owner of the domain signbona.com. For any legal communication: legal@signbona.com.
2. Purpose of the service
SignBona allows users to create signature envelopes from PDF documents, define recipients and fields (signature, initials, text, checkboxes, dates, etc.), send them by email for signature, sign electronically with one-time password (OTP) verification, and obtain a signed PDF along with an audit certificate.
Signatures are applied in PAdES (PDF Advanced Electronic Signatures) format and include a qualified timestamp under RFC 3161. The process event chain is preserved with cryptographic integrity (HMAC-SHA256) to serve as evidence.
3. Registration and user account
To use SignBona you must create an account by providing a valid email and a password meeting the minimum security requirements. You must have sufficient legal capacity to contract and, if you act on behalf of a company, authorization to bind it.
You're responsible for the confidentiality of your credentials and for all activity from your account. Notify us immediately of any unauthorized use at support@signbona.com.
The account is personal and non-transferable. You may not assign your access or share passwords with third parties.
4. Legal validity of electronic signatures
SignBona is designed in accordance with the Electronic Signatures in Global and National Commerce Act (ESIGN Act, 15 U.S.C. §7001 et seq.) and the Uniform Electronic Transactions Act (UETA), adopted by 49 states and the District of Columbia. Signatures generated through the platform meet the legal requirements to be the equivalent of a handwritten signature when the following elements concur, all implemented by the service:
- Intent to sign expressed by the signer's action (explicit click on the sign button).
- Consent to do business electronically (Consumer Disclosures under ESIGN §7001(c) when applicable).
- Attribution to the signer through verified email and one-time OTP code, bound to the X.509 certificate issued for the signature.
- Retention of the evidence (signed PDF, IP/user-agent log, RFC 3161 timestamp and HMAC event chain) under ESIGN §7001(d).
Under the ESIGN Act and UETA, an electronic signature shall not be denied legal effect solely because it is in electronic form. The specific evidentiary effectiveness of each signature must be assessed in each case under applicable law and the document's intended use. Certain acts are expressly excluded by law (see below). It's your responsibility to verify that the signature level offered is suitable for the intended use.
Documents not supported
SignBona must not be used for the following documents, which ESIGN Act §7003(b) and UETA §3 expressly exclude from their scope:
- Wills, codicils or testamentary trusts.
- Certain family law matters: adoption, divorce and other matters under state family law.
- Transactions governed by the Uniform Commercial Code, other than §§1-107, 1-206, Articles 2 and 2A.
- Documents that require notarial acknowledgement or the involvement of a notary public, except where an authorized Remote Online Notary is used.
- Notices governed by ESIGN §7003(b)(2) (cancellation of insurance benefits, termination of essential utility services, foreclosure or eviction notices, recall of products posing a risk to health, etc.).
If your document is governed by the law of a state or country that imposes additional requirements, particular exclusions may apply. It's your responsibility to verify that the document may be signed electronically under the law that governs it.
5. Acceptable use
You agree not to use SignBona to:
- Sign documents on behalf of third parties without their express authorization, or impersonate another person.
- Commit fraud, forgery or any unlawful activity.
- Upload content that infringes intellectual or industrial property rights, image rights, business secrets or any other third-party rights.
- Upload malicious software, harmful code or documents with illegal, abusive, defamatory, obscene or hateful content.
- Circumvent security measures, perform unauthorized penetration testing or deliberately overload the infrastructure.
- Use the service for unsolicited bulk sending (spam, in violation of the CAN-SPAM Act) or for activities that violate U.S. privacy laws.
- Reverse-engineer the service or attempt to extract its source code, except as permitted by mandatory law.
6. User content and intellectual property
You retain all rights over the documents and data you upload to SignBona. You only grant us the limited, non-exclusive license needed to host, process, transmit and display such content for the sole purpose of providing you with the service.
You declare and warrant that you have the necessary rights and authorizations over the documents you upload and the personal data of the recipients you add to an envelope. With respect to those recipients you act as the "business" within the meaning of the CCPA; SignBona acts as a "service provider" under a data processing agreement (DPA).
The platform, its software, trademarks, logos and design are owned by SignBona or its licensors and are protected by applicable law. These terms transfer no rights over them to you.
7. Service availability and maintenance
We make reasonable efforts to keep the service available 24×7 but don't guarantee a specific uptime during the current product phase. The service may experience interruptions due to scheduled maintenance, technical issues or external causes (hosting providers, timestamping authority failures, etc.). When reasonable, we'll notify you of maintenance in advance.
We may modify, improve or remove features. If a modification materially affects the service, we'll let you know.
8. Pricing and billing
During the current phase the service is offered at no cost on the available plans. Paid plans, if introduced, will be shown clearly before signup with their price, applicable sales tax, billing period and cancellation terms. Activation of a paid plan will never occur without your express consent.
9. Personal data processing
When we process personal data on behalf of the user (data of your envelope recipients and their signatures), SignBona acts as a "service provider" within the meaning of the CCPA. The details of that processing, as well as the data we process as "business" (your account data), are described in the Privacy policy, which forms an integral part of these terms.
10. Limitation of liability
To the maximum extent permitted by law:
- SignBona shall not be liable for indirect, consequential damages, loss of profits, goodwill, business opportunities or data loss or corruption.
- SignBona's aggregate liability to the user for any claim arising from the service shall be limited to the amount paid by the user in the twelve months prior to the event giving rise to the liability. If the service has been provided free of charge, such liability shall not exceed one hundred U.S. dollars (US$100).
- Nothing in these terms limits liability for willful misconduct, gross negligence, or for those cases that applicable law does not allow to be excluded.
11. Warranties
The service is provided "as is" and "as available." Except as expressly provided in these terms, SignBona grants no warranty, express or implied, regarding the suitability of the service for a particular purpose, its uninterrupted availability or the absence of errors. You're responsible for validating that the service result meets the requirements of your specific use case.
12. Suspension and termination
We may suspend or terminate access to the account, in whole or in part, if we have reasonable grounds to believe these terms have been breached, especially the acceptable use section, or when required by law or a competent authority. Where possible, we'll give advance notice and a period to remedy.
You can cancel your account at any time from Settings › Account. Deletion is applied with a 30-day grace period during which you can reverse it. After that period your personal data is deleted under the terms of the Privacy policy. We retain the minimum records necessary to preserve the evidentiary integrity of envelopes already signed.
13. Modifications to the terms
We may update these terms to reflect legal or service changes. If the changes are substantial, we'll notify you by email or via a prominent notice in the application with reasonable advance notice. Continued use of the service after the new version takes effect implies acceptance. If you don't agree, you can cancel your account.
14. Communications
Communications related to the service will be sent to the email address associated with your account. It's your responsibility to keep that address up to date and to check the inbox (including the spam folder).
15. Force majeure
SignBona shall not be liable for breaches of its obligations when due to force majeure or fortuitous events (including, but not limited to, widespread internet failures, mass cyberattacks, outages of cloud providers or timestamping authorities, decisions of public authorities or natural disasters).
16. Assignment
You may not assign your rights or obligations under these terms without our prior written consent. SignBona may assign them to a successor entity in the event of merger, acquisition, restructuring or any other corporate transaction, ensuring at all times the same level of protection.
17. Governing law and jurisdiction
These terms are governed by the laws of the State of Delaware (USA), without regard to its conflict-of-law principles. Any dispute arising from these terms shall be brought exclusively in the state or federal courts located in New Castle County, Delaware, unless the consumer-protection laws of your state of residence establish a different mandatory venue.
18. Contact
If you have questions about these terms, write to us at legal@signbona.com. For general support visit the support center.
