12/10/2023 0 Comments Esignature pdf![]() If no TSA URL is selected (the default), the signature will not be timestamped, but will use the current time from your local computer. The list of TSA URLs that can be selected is maintained under LibreOffice - Preferences Tools - Options - LibreOffice - Security - TSAs. This (RFC 3161) timestamp will allow anyone viewing the PDF to verify when the document was signed. Time Stamp AuthorityĪllows you to optionally select a Time Stamping Authority (TSA) URL.ĭuring the PDF signing process, the TSA will be used to obtain a digitally signed timestamp that is then embedded in the signature. The PDF will be displayed in our preview tool. Each or all of the three fields may be left blank. Simply drag and drop your PDF into the area above or click on the link to choose your file. ![]() It will be embedded in the appropriate PDF fields and will be visible to anyone viewing the PDF. ![]() Learn how to sign with an electronic signature. You can sign a PDF or other document quickly and securely with an e-signature. These three fields allow you to optionally enter additional information about the digital signature that will be applied to the PDF (Where, by whom and why it was made). Electronic signatures, or e-signatures, have the same level of convenience as digital signatures but require less authentication. This is cumbersome, but that's how smartcards work. Some smartcard software will prompt you for the PIN again before signing. When using a smartcard, enter the PIN here. Certificate passwordĮnter the password used for protecting the private key associated with the selected certificate. Select the certificate to use for digitally signing the exported PDF by clicking on the corresponding line, then click OK.Īll other fields on the Digital Signatures tab will be accessible only after a certificate has been selected. When using a smartcard that is protected by a PIN, you are also prompted for that. If the key store is protected by a password, you are prompted for it. SelectĪll certificates found in your selected key store are displayed. Use this certificate to digitally sign PDF documentsĪllows you to select a certificate to be used for signing this PDF export. This is usually done during installation of the smartcard software. PSPDFKit supports the PDF 1.7/2.0 digital signature specification RSA. When using a smartcard, it must already be configured for use by your key store. For example, the ESIGN Act in the US provides that an eSignature is valid as long as. The key store to be used can be selected under LibreOffice - Preferences Tools - Options - LibreOffice - Security - Certificate Path. The signed PDF export uses the keys and X.509 certificates already stored in your default key store location or on a smartcard. you), and that the document has not been modified since it was signed. Digital signatures are used to ensure that the PDF was really created by the original author (i.e.
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