A signature block in a PDF refers to a designated area within the document where individuals can digitally sign to authenticate their identity. This feature is commonly used for contracts, official forms, and other documents requiring electronic signatures.
Adding signature blocks to PDFs simplifies the signing process, eliminates the need for physical signatures, and streamlines document workflows. One key historical development was the introduction of the PDF/A standard in 2005, which established a framework for long-term preservation of digital documents, including those containing signatures.
