Here is the code. I copy some content from an existing PDF, add a logo to
it, and write it out to a new PDF. @ things are wrong though. Signature
fields are lost and the content is not centered in the new PDF?
I really appreciate your help on this!
Rick.
Document document = new Document();
PdfReader reader = new PdfReader("C:\\originalPDF.pdf");
int pageCount = reader.getNumberOfPages();
System.out.println("There are " + pageCount + " pages in the original
file.");
PdfWriter writer = PdfWriter.getInstance(document, new
FileOutputStream("C:\\newPDF.pdf"));
document.open();
PdfContentByte cb = writer.getDirectContent();
PdfImportedPage page = null;
for(int x = 1; x <= pageCount; x++){
page = writer.getImportedPage(reader, x);
cb.addTemplate(page, 0, 0); <--- TODO: center the new page content
Image img = Image.getInstance("C:\\_projects\\GPO\\Final_PKI_logo.jpg");
img.scaleToFit(img.width() / 2, img.height() / 2);
img.setAbsolutePosition(470, 780);
cb.addImage(img);
cb.stroke();
document.newPage();
}
>From: Bruno Lowagie <[EMAIL PROTECTED]>
>Reply-To: Post all your questions about iText here
><itext-questions@lists.sourceforge.net>
>To: Post all your questions about iText here
><itext-questions@lists.sourceforge.net>
>Subject: Re: [iText-questions] Signature fields lost when
>usingPdfContentByte
>Date: Fri, 09 Mar 2007 18:26:00 +0100
>
>Rick DeFazio wrote:
> > I copy a document that has 2 signature fields on it using
>PdfContentByte.
>
>Saying you copy a document 'using PdfContentByte' is ambiguous.
>Define 'I copy'; choose one of the following answers:
>- with PdfWriter
>- with PdfCopy
>- with PdfStamper - NOTE THAT THIS IS THE ONLY GOOD ANSWER! -
>
> > The newly created document ends up losing these 2 signature fields?
>
>Of course the signature fields are lost.
>What did you expect? That anybody could just go on
>and forge signed documents?
>
> > Does anyone know of some example code to get around this?
> > I have searched but found none...
>
>Maybe you should read the book (more specifically chapter 16).
>br,
>Bruno
>
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