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https://issues.apache.org/jira/browse/PDFBOX-3390?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15345213#comment-15345213
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Andreas Lehmkühler commented on PDFBOX-3390:
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We can't include that code as it uses an incompatible license (LGPL)
> Code sample for create a PDF PADES-LTV
> --------------------------------------
>
> Key: PDFBOX-3390
> URL: https://issues.apache.org/jira/browse/PDFBOX-3390
> Project: PDFBox
> Issue Type: New Feature
> Components: Signing
> Affects Versions: 2.0.2
> Reporter: Leuqarut
> Priority: Minor
> Labels: build, test
>
> 0
> down vote
> favorite
> I'm using PDFBox 2.0 I would like to create a PDF with PADES-LTV format but
> not me steps to do so. My question is on the part of the LTV parameters and
> when applied.
> Need to know at what point are added and how
> I put part of my code if you can guide me.But I am using the example of
> signing it PDFBox
> https://svn.apache.org/viewvc/pdfbox/trunk/examples/src/main/java/org/apache/pdfbox/examples/signature/
> I have this information but not how to apply it PDFBox
> According to ETSI TS 102 778-4 V1.1.2 (2009-12) the structure of a PDF
> document to which LTV is applied is illustrated in figure 2.
> Figure 2: Illustration of PDF Document with LTV
> The life-time of the protection can be further extended beyond the life-of
> the last document Time-stamp applied by adding further DSS information to
> validate the previous last document Time-stamp along with a new document
> Time-stamp. This is illustrated in figure 3.
> Figure 3: Illustration of PDF Document with repeated LTV
> On the other hand, according to Adobe (as written by their PDF evangelist
> Leonard Rosenthol on the iText mailing list in January 2013),
> LTV enabled means that all information necessary to validate the file (minus
> root certs) is contained within. So this statement of yours would be true.
> the PDF is signed correctly and contains all necessary certificates, a valid
> CRL or OSCP response for every certificate But since the only way for that
> statement to be true is for the presence of DSS, you must have DSS for
> LTV-enabled to appear. No timestamp (regular or document level) is required.
> Due to this divergence PDF documents with LTV according to ETSI usually are
> presented by Adobe software to have one not LTV-enabled document time stamp.
> reference (for itext)
> :http://stackoverflow.com/questions/27892960/how-to-enable-ltv-for-a-timestamp-signature
> Thanks in advance
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