[
https://issues.apache.org/jira/browse/PDFBOX-4556?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16864191#comment-16864191
]
Tilman Hausherr commented on PDFBOX-4556:
-----------------------------------------
I assume you meant to write "but its noT working with the pdfbox 1.8". I also
assume that with "all needed objects can not read from the template" you meant
the message "Could not read all needed objects from template" (always use copy
& paste for error messages, because I use these to search in the source code so
having the exact spelling is important). That one comes if the template either
doesn't have the annotation or doesn't have the signature field in the acroform.
The template is passed with
{{options.setVisualSignature(signatureProperties)}}. In {{signatureProperties}}
there is an {{inputStream}} that is a PDF. This {{inputStream}} is a
{{ByteArrayInputStream}} so you can (and should) reset it after saving it for
inspection, so that the {{inputStream}} is still usable.
The actual show happens in {{PDFTemplateCreator.buildPDF()}}, which is called
by {{PDVisibleSigProperties.buildSignature()}}, which is called by the example.
So to save your visible signature template into a file, here's what to do, add
these 5 lines in the sample code at the described place:
{code:java}
signatureProperties.signerName("name").signerLocation("location").signatureReason("Security").preferredSize(0)
.page(page).visualSignEnabled(true).setPdVisibleSignature(visibleSig).buildSignature();
// existing example code
ByteArrayInputStream visibleSignature = (ByteArrayInputStream)
signatureProperties.getVisibleSignature();
FileOutputStream fos = new FileOutputStream(new
File("......\\visibleSignature.pdf"));
IOUtils.copy(visibleSignature, fos);
fos.close();
visibleSignature.reset();
signing.signPDF(document, signatureProperties); // existing example code
{code}
When you have the file, inspect it with PDFDebugger, look whether it has the
signature image, the annotation, and the acroform field. Or attach the file to
this issue. The example hasn't been modified for 3 years and I just checked
that it still works fine.
PDVisibleSigProperties and all these design pattern modeled classes
(PDVisibleSigProperties, PDFTemplateCreator, and many more) are difficult to
use. Instead of using them, you could also create your template PDF and then
pass it as an inputStream in {{options.setVisualSignature(inputStream)}}, that
is what {{CreateVisibleSignature2}} is doing. But first you should get the
unmodified example to work.
> how the visual representation of the signature is achieved
> ------------------------------------------------------------
>
> Key: PDFBOX-4556
> URL: https://issues.apache.org/jira/browse/PDFBOX-4556
> Project: PDFBox
> Issue Type: Wish
> Components: .NET
> Affects Versions: 1.8.16
> Reporter: bal
> Priority: Major
>
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
