But to be honest is does not seem to be very easy to achieve with v5. PdfStamper stamper PdfStamper. I was using PdfStamper along with PdfSignatureApperance to apply digital signatures. My initial concert was not to use iText (v7) because we do not have much time to migrate all the projects we have with iText (v5), but I went ahead and tried out with v7. I upgraded from iText 5.2.1 to iText 5.5.5. Is there any way to do this "out of the box" or I need to overload the method that builds the signature appearance ( like this) and how can I achieve this? If I scale the image to fit the column, it goes to the top of rectangle: Heres the latest iteration of the service and methods that were using in our. The result is more or less the expected, but there are two problems: the signature information takes over the whole rectangle (this is normal since I do not modify layer 2, and the image in layer 0 is not scaled as it should) Ive posted examples of document signing using iText and Grails previously. c1.SetSimpleColumn(elements, 0, 0, rectangle.Width/2, rectangle.Height, 0, Element.ALIGN_CENTER) // align left c1.SetSimpleColumn(elements, 0, rectangle.Height / 2, rectangle.Width, rectangle.Height, 0, Element.ALIGN_CENTER) // align topĬ1.SetSimpleColumn(elements, rectangle.Width/2, 0, rectangle.Width, rectangle.Height, 0, Element.ALIGN_CENTER) // align right c1.SetSimpleColumn(elements, 0, 0, rectangle.Width, rectangle.Height / 4, 0, Element.ALIGN_CENTER) // align bottom Image img = Image.GetInstance(signatureImage) Įlements.Add(new Chunk(img, 0, 0, true)) In the following code I load the image and put it in a chunk (idea taken from this example) PdfTemplate pdfTemplate = sap.GetLayer(0) ĬolumnText c1 = new ColumnText(pdfTemplate) ig thanks also to the iText development team. Nevertheless, this is just an initial sketch to set position of the images. encouraged me to write this paper so that they could implement an iText-driven digital signature solution. So far I tried working on layer 0 of the signature but I think I doing it wrong because signature details are set in layer 2. The signature is being done with the Adobe wizard and using tokens with digital signature installed on the computer. iTextPDF Signature: how to not show signature fields, but show an image. What I would like to do is to display just the sign of the signer and not the text saying DIGI. I am trying to create custom digital signatures using iText (sharp, version 5.5.13) where the user is able to set the image location from a set of four positions (top, bottom, left and right), as shown below: In my work, they use a digital signature to validate PDF files that are then delivered to those who request them (who do not belong to the company), so the signature with the signer's data must be seen in the PDF. Digital signatures are that solution to replace wet ink signatures when using digital documentation. Im tryng to sign digitally a pdf using iText and I achieved successfully helped by this example.
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