Don't prune resource dictionaries on errors or by request

If we are unable to filter a page's content streams, don't attempt to
remove objects from the page's resource dictionary. Also provide a
command line option to suppress resource removal in case we ever need
this as a workaround for some bug or broken PDF files.

1 files changed, 6 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index ae15e68d..db9bee08 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2018-06-22  Jay Berkenbilt  <ejb@ql.org>
+
+	* Add new option --preserved-unreferenced-resources, which
+	suppresses removal of unreferenced objects from page resource
+	dictionaries during page splitting operations.
+
 2018-06-21  Jay Berkenbilt  <ejb@ql.org>
 
 	* Add method QPDFPageObjectHelper::removeUnreferencedResources and