15 docs tagged with "Sign"

Add a time-stamp to a PDF document with the Pdftools SDK. This type of digital signature provides evidence that a document existed at a specific time, and that the content of the document has not changed since that time.

Use the built-in cryptographic provider with the Pdftools SDK. The built-in provider uses the cryptographic functions of the local operating system and requires no cryptographic hardware or external service.

Digitally certify a PDF document with the Pdftools SDK. This type of signature records the identity of the document author, and allows users to make specific changes to the document, while retaining the validity of the signature.

Create a signature with a visual appearance on a page of a PDF, or set a visual appearance on an existing signature field before signing.

Cryptographic providers supported by the Pdftools SDK, including the built-in provider, PKCS#11, and online signing services.

Embed long-term validation information when digitally signing PDF documents with the Pdftools SDK.

Use the GlobalSign cryptographic provider with the Pdftools SDK. The GlobalSign provider enables access to the GlobalSign Digital Signing Service to perform cryptographic functions.

Use the PKCS#11 cryptographic provider with the Pdftools SDK. The PKCS#11 provider enables access to a cryptographic device using a PKCS#11 driver module such as a HSM, Cloud KMS, or USB token to perform cryptographic functions.

Configure HTTPS connections, set up a proxy, and store local certificates for creating digital signatures with the Pdftools SDK.

Digitally sign a PDF document with the Pdftools SDK. This type of digital signature records the identity of the signer, and confirms that the content of the document has not changed after the signature was applied.

Learn about the security (encryption) and digital signature capabilities of the Pdftools SDK.

Sign PDF documents with the Pdftools SDK. Create, manage, and validate digital signatures using local and online cryptographic providers.

Use the Swisscom cryptographic provider with the Pdftools SDK. The Swisscom provider enables access to the Swisscom Signing Service to perform cryptographic functions.

Learn how to use a time-stamp authority (TSA) to create digital document timestamps with the Pdftools SDK.

Validate signatures in a digitally signed PDF document. Confirm the validity of signing certificates by referencing offline and online sources such as certificates, Online Certificate Status Protocol (OCSP) records and Certificate Revocation List (CRL) records.