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- HOW TO CREATE A DIGITAL SIGNATURE IN PDF CONVERTER HOW TO
- HOW TO CREATE A DIGITAL SIGNATURE IN PDF CONVERTER CODE
How to Create Visible Image Digital Signature in PDF in C# language
HOW TO CREATE A DIGITAL SIGNATURE IN PDF CONVERTER CODE
If you want to eSign PDF in your ASP.NET application, you only need copy the C# code above to the webform "Page_Load" methed or any other customized metheds in the web handler or service Class. This certificate will not validate by default when you open it in Acrobat Adobe Reader, you need to add it to your trusted list. Digital sign feature need the stream support reading, so you have to use ReadWrite mode here using (FileStream fs = new FileStream( "signed.pdf", FileMode.Create, FileAccess.ReadWrite)) SignatureAppearance.DrawText( "Date: " + ()) ĭ(widget) ĭ(signatureField) SignatureAppearance.DrawText( "Digitally signed by " + certificate.GetNameInfo(X509NameType.SimpleName, true)) PageContentBuilder signatureAppearance = new PageContentBuilder() Customize signature appearance, you can show all signature info, or just name or date Apply a visible signature widiget to represent the contents of the signature field. SignatureField.Signature = new Signature(certificate) Add signature object to a signature field, so we can add a visualization to it SignatureField signatureField = new SignatureField( "iDiTect Sign Field") First you need create a SignatureField with unique name X509Certificate2 certificate = new X509Certificate2( "test.pfx", "iditect") PdfDocument document = pdfFile.Import(File.ReadAllBytes( "sample.pdf")) You can add normal infomation like "Reason", "Location", "Date", or insert specifical content as what you want.
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Here comes to the C# code of how to create visible text digital signature as below.
![how to create a digital signature in pdf converter how to create a digital signature in pdf converter](http://www.binarynow.com/wordpress/wp-content/uploads/2013/10/signatures.png)
How to Create Visible Text Digital Signature in PDF in C# language And this electronic signature can be inserting in target page and target area in PDF. The appearance of signature field can be chosen from three types: only showing text, only showing image, showing text and image. In order to sign a PDF file you will need a digital ertificate issued by a valid Certificate Authority(CA), which provide you a PKCS#12 certificate (PFX or P12 file) for signing PDF document in Winforms, WPF and ASP.NET web applications. Digital signature contains encrypted information and password protected.