This group contains samples showing how to sign PDF documents, prepare documents for signing, or verify digital signatures using Docotic.Pdf library in C# and VB.NET.
Don't miss all other samples.
This sample shows how to read PDF signature and corresponding certificates properties.
This sample shows how to add signature fields to a PDF document.
This sample shows how to sign an existing PDF document.
Sign PDF document and embed a timestamp
This sample shows how to sign an existing PDF document and embed a timestamp into the signature.
This sample shows how to sign a specific signature field in a PDF document.
Sign PDF with a customized signature field
This sample shows how to set up the way the signature field will look after the signing.
Sign signature field and lock PDF form fields
This sample shows how to create and sign a signature field with lock.
This sample shows how to verify a PDF signature and to check revocation of its signing certificate.
Sign an already signed PDF document
This sample shows how to add a digital signature to an already signed PDF document.
Sign a PDF form by multiple people
This sample shows how to get a PDF form signed by multiple people.
Sign PDF document using AWS KMS
This sample shows how to sign a PDF document using a key from AWS KMS.
Sign PDF document using Azure Key Vault
This sample shows how to sign a PDF document using a key from Azure Key Vault.
Sign PDF document using PKCS#11 driver
This sample shows how to sign a PDF document using a PKCS#11 driver.