From 9b76ec154dfe001f599c4ae495de7a419d639562 Mon Sep 17 00:00:00 2001 From: Jay Berkenbilt Date: Tue, 22 Oct 2019 16:44:27 -0400 Subject: Add ChangeLog and documentation for signature dict enhancements --- ChangeLog | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) (limited to 'ChangeLog') diff --git a/ChangeLog b/ChangeLog index 3c6dccee..76755724 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,29 @@ +2019-10-22 Jay Berkenbilt + + * Incorporate changes from Masamichi Hosoda + to properly handle signature in the following ways: + - Always represent /Contents in a signature dictionary as a hex + string + - Do not compress signature dictionaries when generating object + streams + - Do not encrypt/decrypt the /Contents field of the signature + dictionary when creating or reading encrypted files + + * Incorporate changes from Masamichi Hosoda + to add additional methods for making it possible to gain deeper + insight into cross reference tables and object renumbering. These + new API calls make it possible for applications to go into PDF + files created by qpdf and make changes to them that go beyond + working with the PDF at the object level. The specific use case + for these changes was to write an external tool to perform digital + signature, but there could be other uses as well. New methods + include the following, all of which are described in their + respective headers: + - QPDF::getXRefTable() + - QPDFObjectHandle::getParsedOffset() + - QPDFWriter::getRenumberedObjGen(QPDFObjGen) + - QPDFWriter::getWrittenXRefTable() + 2019-10-12 Jay Berkenbilt * 9.0.2: release -- cgit v1.2.3-70-g09d2