diff --git a/userguide/avstopam.html b/userguide/avstopam.html
index 9ec5e41..f69fdaa 100644
--- a/userguide/avstopam.html
+++ b/userguide/avstopam.html
@@ -1,8 +1,7 @@
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2//EN">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
+<html>
<head>
<title>Avstopam User Manual</title>
-<meta http-equiv="content-type" content="text/html; charset=us-ascii" />
</head>
<body>
diff --git a/userguide/escp2topbm.html b/userguide/escp2topbm.html
index 186e032..af35b06 100644
--- a/userguide/escp2topbm.html
+++ b/userguide/escp2topbm.html
@@ -6,6 +6,7 @@ Updated: 14 July 2015
<BR>
<A HREF="#index">Table Of Contents</A>
+<h2>NAME</h2>
escp2topbm - convert an ESC/P2 printer file to a PBM image
<H2 id="synopsis">SYNOPSIS</H2>
diff --git a/userguide/faxformat.html b/userguide/faxformat.html
index cb5d710..cadd217 100644
--- a/userguide/faxformat.html
+++ b/userguide/faxformat.html
@@ -5,10 +5,12 @@
Updated: 03 December 2008
<BR>
+<H2>SYNOPSIS</H2>
<p>This page, part of the <a href="index.html">Netpbm user's guide</a>,
describes FAX formats in relation to Netpbm facilities.
+<H2>DESCRIPTION</H2>
<p>The ITU (formerly CCITT) publishes standards for operation of fax machines
(the idea is to provide a way to be sure that a fax machine is able to receive
a fax sent by another). These standards incidentally specify graphics file
diff --git a/userguide/pampaintspill.html b/userguide/pampaintspill.html
index c71db55..f62011f 100644
--- a/userguide/pampaintspill.html
+++ b/userguide/pampaintspill.html
@@ -1,8 +1,7 @@
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2//EN">
-<html xmlns="http://www.w3.org/1999/xhtml">
+<html>
<head>
<title>Pampaintspill User Manual</title>
-<meta http-equiv="content-type" content="text/html; charset=us-ascii" />
</head>
<body>
@@ -11,6 +10,7 @@
<p><a href="#index">Table Of Contents</a></p>
+<H2>NAME</H2>
<p>pampaintspill - smoothly spill colors into the background</p>
<h2><a name="synopsis">SYNOPSIS</a></h2>
diff --git a/userguide/pamsistoaglyph.html b/userguide/pamsistoaglyph.html
index 8487717..d17368b 100644
--- a/userguide/pamsistoaglyph.html
+++ b/userguide/pamsistoaglyph.html
@@ -1,8 +1,6 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2//EN">
-<html xmlns="http://www.w3.org/1999/xhtml">
+<html>
<head>
<title>Pamsistoaglyph User Manual</title>
-<meta http-equiv="content-type" content="text/html; charset=us-ascii" />
</head>
<body>
diff --git a/userguide/pamstereogram.html b/userguide/pamstereogram.html
index d5c3f83..a43fd5f 100644
--- a/userguide/pamstereogram.html
+++ b/userguide/pamstereogram.html
@@ -1,5 +1,5 @@
-<!DOCTYPE html>
-<html xmlns="http://www.w3.org/1999/xhtml">
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2//EN">
+<html>
<head>
<title>Pamstereogram User Manual</title>
</head>
@@ -10,7 +10,7 @@
<p>Updated: 19 June 2015</p>
-<p><a href="#contents">Table Of Contents</a></p>
+<p><a href="#index">Table Of Contents</a></p>
<h2 id="name">NAME</h2>
diff --git a/userguide/pamtoavs.html b/userguide/pamtoavs.html
index 4f1b63e..0619e1b 100644
--- a/userguide/pamtoavs.html
+++ b/userguide/pamtoavs.html
@@ -1,8 +1,7 @@
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2//EN">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
+<html>
<head>
<title>Pamtoavs User Manual</title>
-<meta http-equiv="content-type" content="text/html; charset=us-ascii" />
</head>
<body>
diff --git a/userguide/pamtooctaveimg.html b/userguide/pamtooctaveimg.html
index 9cadc13..69b09cb 100644
--- a/userguide/pamtooctaveimg.html
+++ b/userguide/pamtooctaveimg.html
@@ -1,8 +1,7 @@
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2//EN">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
+<html>
<head>
<title>Pamtooctaveimg User Manual</title>
-<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
</head>
<body>
diff --git a/userguide/pnmflip.html b/userguide/pnmflip.html
index 53c365c..eb0b896 100644
--- a/userguide/pnmflip.html
+++ b/userguide/pnmflip.html
@@ -4,9 +4,11 @@
<BODY>
<H1>pnmflip</H1>
<BR>
+<H2>NAME</H2>
<p><b>pnmflip</b> was replaced in Netpbm 10.13 (December 2002) by
<b><a href="pamflip.html">pamflip</a></b>.
+<H2>DESCRIPTION</H2>
<P><B>pamflip</b> is mostly backward compatible with <b>pnmflip</b>,
but works on PAM images too.
diff --git a/userguide/pnmmercator.html b/userguide/pnmmercator.html
index e9e7165..9ac6c5b 100644
--- a/userguide/pnmmercator.html
+++ b/userguide/pnmmercator.html
@@ -1,7 +1,6 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2//EN">
<html>
<head>
-<meta http-equiv="content-type" content="text/html; charset=ISO-8859-1">
<title>PnmMercator User Manual</title>
</head>
<body>
diff --git a/userguide/ppmtogif.html b/userguide/ppmtogif.html
index 84b5163..1d33072 100644
--- a/userguide/ppmtogif.html
+++ b/userguide/ppmtogif.html
@@ -4,11 +4,14 @@
<BODY>
<H1>ppmtogif</H1>
<BR>
+<H2>NAME</H2>
<p><b>ppmtogif</b> was replaced in Netpbm 10.37 (December 2006) by
<b><a href="pamtogif.html">pamtogif</a></b>.
+<H2>SYNOPSIS</H2>
<P><B>pamtogif</b> is mostly backward compatible with <b>ppmtogif</b>.
+<H2>DESCRIPTION</H2>
<P>One way <b>pamtogif</b> is not backward compatible with <b>ppmtogif</b>
is that to specify a transparency (alpha) mask with <b>ppmtogif</b>, you
supply the transparency as a separate pseudo-PGM image and use the