How to verify a qualified electronic signature?

Asked by: Dena Heathcote  |  Last update: June 12, 2026
Score: 4.2/5 (59 votes)

To verify a Qualified Electronic Signature (QES), open the signed document (often a PDF) in a reader like Adobe Acrobat, use its built-in signature panel to automatically validate the certificate against trusted sources (like the EU's LOTL), check for a green checkmark indicating authenticity and integrity (no tampering), and review the certificate details for issuance by a recognized authority and its validity period, often using dedicated online validators for EU/eIDAS compliance.

How to validate a qualified electronic signature?

Perform a validity check with an independent validator. We recommend the official QES validator of the European Commission. The EU validator checks whether a document has been successfully signed with a QES according to EU law (eIDAS). We recommend the official QES validator of the Swiss federal administration.

How to check if an electronic signature is valid?

View digital signature details

From the Signature Details dialog box, you can determine if the signature is: Valid The signature is current. The certificate is trusted, and isn't expired or revoked. Invalid The certificate is revoked or the content signed has been altered.

How to verify an eSignature?

To verify e-signatures using pdfFiller, upload your PDF document to the platform. Navigate to the e-signature section, select the document needing verification, and view the signature details, including signing timestamps and authenticity checks. pdfFiller simplifies this process, ensuring easy verification.

How do you authenticate an electronic signature?

Authentication happens with a successful login to the email account. Login credentials: The signer is authenticated by the sending party's system prior to accessing the transaction. Login requires a valid user ID and password. SMS OTP: Verify your signer's identity via a secure one-time SMS code sent to their phone.

Electronic signatures explained – Part 2: How to verify identity of the signer | Signicat

33 related questions found

What are the four requirements for an electronic signature to be valid?

For an electronic signature to be valid, it generally requires intent to sign, consent to do business electronically, the signature must be associated with the record, and there must be a system for record retention and accuracy, ensuring all parties can access the signed document and prove its integrity, as established by laws like the U.S. ESIGN Act and UETA.
 

How to certify a digital signature?

When the SelfCert Success message appears, click OK.

  1. Go to C:\Program Files\Microsoft Office\<Office version>\.
  2. Click SelfCert.exe. The Create Digital Certificate box appears.
  3. In the Your certificate's name box, type a descriptive name for the certificate.
  4. Click OK.
  5. When the SelfCert Success message appears, click OK.

How to prove an electronic signature?

A valid signature should be backed by identity verification, a digital certificate, and a secure audit trail. These elements confirm the document's integrity and the signer's authenticity.

What is required to verify a digital signature?

For a digital signature to be valid, two key conditions must be met: the signature must ensure that no modification has been made to the document after it has been signed. the signature must be supported by a certificate identifying the signatory, and that only the signatory can produce the signature.

How can a signature be verified?

The Certification Authority (CA) signs each certificate when it issues the certificate. The verifier confirms the validity of the certificate by verifying this signature. To do this verification, the verifier uses the public key from a certificate belonging to the issuing CA.

What is a legally valid electronic signature?

An e-signature, short for electronic signature, is a digital representation of a person's signature used to sign documents electronically. It serves as a legally binding way to indicate consent or approval on electronic documents.

How to check a PDF digital signature?

View signatures and certificates on the page of a PDF document. To see more information about a digital signature or certificate from the page of a PDF document, click on the signature. The Signature Properties dialog appears, and lets you do the following: Validate signature: confirm the validity of a digital ...

How to check signature authenticity?

Inspect the Ink: Authentic autographs usually feature rich, deep ink with natural flow. A fake might have faded, uneven, or inconsistent ink. Use a magnifying glass to spot tiny details, like ink pooling at the ends of strokes. Feel the Paper: The quality of the material matters.

What is the difference between an electronic signature and a qualified electronic signature?

This excludes possible attempts of fraud or impersonating other people. A qualified signature enables the identification of the person who signed the document. It also guarantees the integrity of such a document, as the data confirmed with an electronic signature can no longer be modified.

How to check the digital signature validity?

Inside the mToken CryptoID Manager, click on the 'CryptoID' button to access details. Go to the "Certificates" section and enter the User PIN. Select your Digital Signature Certificate out of all the options given there. Click on the certificate, and all its details, including validity, will be shown on the screen.

How do you verify a DocuSign signature?

Verify the signature: Look for the “Signed” or “Completed” stamp on the document, which indicates that the signing process is complete. Check the certificate: DocuSign provides a certificate of completion, which includes the date and time of signing, as well as the IP address of the signer.

What are the methods of signature verification?

Signature Verification techniques can be classified into two types - online and offline. In online signature verification, a special instrument is used to record "dynamic" information of the signature such as pressure applied, velocity, etc. This "dynamic" information is then used to authenticate the signature.

What steps are involved in validating a digital certificate?

Steps in the certificate validation process

  • The browser confirms the certificate's integrity. ...
  • The browser checks the certificate's validity period. ...
  • The browser checks the certificate's revocation status. ...
  • The browser verifies the issuer. ...
  • Constraints processing.

What is a verifiable electronic signature?

Within these Verifiable Credentials are digital signatures, which confirm that the information on a credential is accurate. A digital signature system is a process for creating a unique, secure stamp on a digital document, much like how we sign a physical document to prove that it comes from us.

What are the main steps involved in verifying a digital signature?

How to Validate Digital Signatures

  • Step 1: Open the PDF Document. ...
  • Step 2: Select the Signature. ...
  • Step 3: Check Signature Validation Status. ...
  • Step 4: View Signature Properties. ...
  • Step 5: Verify the Signature Certificate. ...
  • Step 6: Check Document Integrity. ...
  • Step 7: Verify Certificate Trust Settings.

What are the methods of proving a signature?

The ordinary methods of proving hand-writing are1 by calling as witness a person who wrote the document, or who saw it written, or who is qualified to express an opinion on handwriting, or by comparison or by admission. 2 There may be circumstantial evidence also. And there can also be presumptions.

What is a key indicator of a forged signature?

Look for variations in style, and it will be easy to detect forgery. Pressure or shaky lines: Most forgers change the pen pressure and speed to replicate a signature. Analyze these factors to check for inconsistency. Variations in pen lifts: Forgers may lift the pen at various points while the original signee will not.

How to confirm an electronic signature?

Verifying an electronic signature is a multi-step process that ensures the document is both authentic and untampered with. Here's how it happens: Identity check: Confirms the signer through email verification, government ID, or multi-factor authentication. The higher the stakes, the stricter the check.

What are the legal requirements for a digital signature?

UETA and ESIGN Act

Those requirements are: Intent to sign – Electronic signatures, like traditional wet ink signatures, are valid only if each party intended to sign. Consent to do business electronically – The parties to the transaction must consent to do business electronically.

Can a digital signature be verified?

Signature verification is the process of checking whether a sign on a document belongs to the right individual and has not been tampered with. In digital formats, verification often involves encryption and certificates that confirm authenticity.