Michael, it is strange to me as I include only the signer certificate in both files. Should I always include the certificate chain? I mean Is this best practice? The certification path I include manually in the Trusted identities of Acrobat reader. Here is the pdf signed with old libraries signed_Technical_data_iText5.2.1.pdf <http://itext-general.2136553.n4.nabble.com/file/n4658507/signed_Technical_data_iText5.2.1.pdf>
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