Modernize encryption API for more granularity

Setting encryption permissions for R >= 3 set permission bits in
groups corresponding to menu options in Acrobat 5. The new API allows
the bits to be set individually.

1 files changed, 9 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index 7ff658c7..1feaffb0 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -16,6 +16,15 @@
 
 2019-01-14  Jay Berkenbilt  <ejb@ql.org>
 
+	* Add new versions of
+	QPDFWriter::setR{3,4,5,6}EncryptionParameters that allow
+	individual setting of the various permission bits. The old
+	interfaces are retained for backward compatibility. In the "C"
+	API, add qpdf_set_r{3,4,5,6}_encryption_parameters2. The new
+	interfaces use separate booleans for various permissions instead
+	of the qpdf_r3_modify_e enumerated type, which set permission bits
+	in predefined groups.
+
 	* Add versions of utf8 to single-byte character transcoders that
 	return a success code.