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https://issues.apache.org/jira/browse/PDFBOX-5354?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17468410#comment-17468410
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Tilman Hausherr commented on PDFBOX-5354:
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Did you try opening a PDF file as usual, then getting the acroform, and
creating a new PDAcroForm only if it doesn't exist?
I assume the "some source code" is the {{CreateEmptySignatureForm.java}}
example.
> How to add empty signature field in existing PDF using pdfbox-3.0.0-RC1
> ------------------------------------------------------------------------
>
> Key: PDFBOX-5354
> URL: https://issues.apache.org/jira/browse/PDFBOX-5354
> Project: PDFBox
> Issue Type: Wish
> Components: AcroForm, Signing
> Reporter: Mayur Kothiwala
> Priority: Major
> Labels: help-requested, query, solution
>
> I want to add digital signature in existing PDF file. For that i just want to
> add empty signature field in pdf as per my desire location using Java. Once
> the new PDF file generated, we would apply digital signature externally by
> clicking on empty signature field which we design above.
> I found some source code but it's with new empty PDF and i want to add in
> existing pdf.
> Kindly provide some sample code.
> I have another query for gradle dependencies.
> how can i add dependencies in gradle, i already tried with this but it's not
> working
> compile group: 'org.apache.pdfbox', name: 'pdfbox', version: '3.0.0-RC1'
> Kindly suggest correct way to declare dependancy.
>
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