To put Joeri’s answer into context, have a look at the Adobe technical white paper Adobe Acrobat 9 Digital Signatures, Changes and Improvements, especially its section “Allowed and disallowed changes.” Here Adobe clarifies the allowed changes (as seen by Acrobat 9 and up) that can be made to a certified or signed document without invalidating … Read more
Why your code doesn’t work As explained in the introduction of the HTML to PDF tutorial, HTMLWorker has been deprecated many years ago. It wasn’t intended to convert complete HTML pages. It doesn’t know that an HTML page has a <head> and a <body> section; it just parses all the content. It was meant to … Read more
If you want to export data to a pdf file, using iText (as your tag indicates) there are various options. You can use the core API, which allows you to insert tables, lists and text. For more information you can consult http://developers.itextpdf.com/content/itext-7-jump-start-tutorial/examples You can export to HTML, and then use pdfHTML (newest iText add-on) to … Read more