diff --git a/Changes b/Changes
index 95b1050..ac1a614 100644
--- a/Changes
+++ b/Changes
@@ -16,6 +16,7 @@ New features:
 * Add structure information to -typeset, add -subformat
 * -typeset can make PDF/UA documents
 * -jpeg, -png and friends can make PDF/UA documents
+* Merge PDF/UA-1 and PDF/UA-2 files, preserving standards compliance
 o -stretch scales without preserving aspect ratio
 o -redact removes whole pages
 
diff --git a/cpdfdraw.ml b/cpdfdraw.ml
index 84980e8..a98b27b 100644
--- a/cpdfdraw.ml
+++ b/cpdfdraw.ml
@@ -297,7 +297,7 @@ let format_paragraph indent j w s =
   let space_runs, space_width = runs_of_utf8 " " in
   let remaining = ref w in
   let allops = ref [] in
-  let ops = ref [Pdfops.Op_Comment "Format paragraph"] in
+  let ops = ref [] (*[Pdfops.Op_Comment "Format paragraph"]*) in
   let first = ref true in
   let firstloop = ref true in
   let justify ops =
diff --git a/cpdfmanual.tex b/cpdfmanual.tex
index 043a38f..4f595aa 100644
--- a/cpdfmanual.tex
+++ b/cpdfmanual.tex
@@ -1,5 +1,6 @@
 %Document -subformat and -title for -jpg, -png etc.
 %Document -subformat and -title for -typeset
+%Document -subformat PDF/UA-2 when merging
 \documentclass{book}
 % Edit here to produce cpdfmanual.pdf, cpdflibmanual.pdf, pycpdfmanual.pdf,
 % dotnetcpdflibmanual.pdf, jcpdflibmanual.pdf jscpdflibmanual.pdf etc.