A digital signature is a piece of information placed in a PDF document that makes it possible to verify the authenticity of the document. The Pdfcrowd API allows you to programmatically create PDFs containing a digital signature field. Such PDFs can be digitally signed in, for example, Adobe Reader or Preview.
This feature is available starting with Pdfcrowd API client libraries version 5.0.
To add a signature field to a document, set the
pdfcrowd-signature class on a DIV element and specify its dimensions.
<div class="pdfcrowd-signature" style="width: 2in; height: 1in; border: 1pt solid black;"> </div>
Our HTML to PDF API will transform this element to a signature field in the resulting PDF.