PdfSignatureField signatureField = new PdfSignatureField(loadedPage, ()) PdfPageBase loadedPage = loadedTextBoxField.Page RectangleF bounds = loadedTextBoxField.Bounds Get bounds from an existing textbox field. PdfLoadedTextBoxField loadedTextBoxField = loadedForm.Fields as PdfLoadedTextBoxField Get the loaded text box field and fill it. If (loadedForm.Fields is PdfLoadedTextBoxField) PdfLoadedForm loadedForm = loadedDocument.Form įor (int i = 0 i < i++) PdfLoadedDocument loadedDocument = new PdfLoadedDocument(stream)
Private static void AddSignature(MemoryStream stream) Include the following namespace in the Program.cs file.Install the NuGet package as a reference to your.Create a new C# console application project.Steps to add a signature field in the PDF converted from Word using C# and VB.NET: Using the Syncfusion PDF library, you can replace the form fields with PdfSignatureField by finding the corresponding form fields in the PDF document.During Word to PDF conversion, enable the flag PreserveFormFields to preserve form fields in the converted PDF using Essential DocIO.Design your template Word document with the required layout of form fields using Microsoft Word.You can add a signature field in the PDF document which is converted from Word in C# and VB.NET. NET Word library used to create, read, and edit Word documents programmatically without Microsoft Word or interop dependencies. In this case the signed key and the displayed key is different.Syncfusion Essential DocIO is a. I think in the current behavior someone can sign the document and someone else can export to PDF with another key. If the signature line is filled (document is signed) why we need to add signature details again on PDF export? This should be automatically _and unchangeable_ while the document is unmodified. Keep current behavior - there is no signature line.Īnd a closing comment. "digsig.pdf" and "eform.pdf" – These files are created with LaTeX and contain only one empty PDF signature field.
"Empty signature line example (empty) (signed in Adobe Reader)" – Previous example signed in Adobe Reader. "Empty signature line example (empty).pdf" – This file is originally created in LibreOffice and PDF signature field is added in Adobe Acrobat. There is only 2 FOSS implementation in LaTeX: eform ( ) and digsig ( ) This can be filled out in a PDF editor like Acrobat Reader. Replace the signature line with an empty PDF signature line.
Export as PDF > Create PDF form option enabled and signature line is empty (and PDF isn’t signed) It should be a PDF annotation, or as Miklós write a PDF widget.ģ. But signature line is a simple draw object. and place it on the same place and same dimension.Įxample: "Signature line example (signed) (with option Create PDF form).pdf" Currently all form elements are exported as PDF annotations. fill it with a PNG replacement of current appearance Replace the signature line with a real PDF signature field Export as PDF > Create PDF form option enabled and signature line is signed (and on export Digital Signatures are filled) Export as PDF > Create PDF form option disabledĮxample: "Signature line example (signed).pdf"Ģ. Signature line should be exported as PDF signature field:ġ. Exported signature line is just a drawing object, not a PDF signature field.Īs Miklós Vajna explained in 117109#c2 currently LibreOffice on PDF exporting (or PDF signing) place signature widget on first page as 0×0 sized object. Export it to PDF with "Create PDF form" option enabled and sign the PDF on Export.ģ. Open attached "Signature line example (signed).odt". Signature line should be exported as visible PDF signature field when "Create PDF form" option is enabled.ġ. Signature line example (signed with other signature) PDF Signature line example (signed) with option "Create PDF form"Įmpty signature line example signed with Adobe ReaderĮmpty signature line example (LaTeX digsig)Įmpty signature line example (LaTeX eform)