HexaPDF 0.29.0 - PAdES Compatible Digital Signatures Published on Monday, 30 January 2023

This release features major internal changes for the support of digital signatures. The whole code was refactored and now HexaPDF itself creates the necessary CMS signed-data structures.

Due to this changes HexaPDF is now able to support PAdES-BES level B-B and B-T signatures!

Additionally, it is now very easy to create digital signatures via HSM calls:

require 'hexapdf'

# Set up client for HSM module
client = ...

doc = HexaPDF::Document.open(ARGV[0])
signing = lambda {|digest_method, data| client.sign_raw(digest_method, data) }
doc.sign("signed.pdf", external_signing: signing,
                       certificate: client.signing_certificate,
                       certificate_chain: client.certificate_chain)

As always, have a look at the changelog for an overview of all changes.