diff --git a/src/hb-coretext.cc b/src/hb-coretext.cc
index 54e3f9ccc..8b4f7e6a3 100644
--- a/src/hb-coretext.cc
+++ b/src/hb-coretext.cc
@@ -35,6 +35,16 @@
 #include "hb-aat-layout.hh"
 #include <math.h>
 
+
+/**
+ * SECTION:hb-coretext
+ * @title: hb-coretext
+ * @short_description: CoreText integration
+ * @include: hb-coretext.h
+ *
+ * Functions for using HarfBuzz with the CoreText fonts.
+ **/
+
 /* https://developer.apple.com/documentation/coretext/1508745-ctfontcreatewithgraphicsfont */
 #define HB_CORETEXT_DEFAULT_FONT_SIZE 12.f
 
diff --git a/src/hb-ft.cc b/src/hb-ft.cc
index fbf362688..5e0511052 100644
--- a/src/hb-ft.cc
+++ b/src/hb-ft.cc
@@ -40,6 +40,17 @@
 #include FT_TRUETYPE_TABLES_H
 
 
+/**
+ * SECTION:hb-ft
+ * @title: hb-ft
+ * @short_description: FreeType integration
+ * @include: hb-ft.h
+ *
+ * Functions for using HarfBuzz with the FreeType library to provide face and
+ * font data.
+ **/
+
+
 /* TODO:
  *
  * In general, this file does a fine job of what it's supposed to do.
diff --git a/src/hb-glib.cc b/src/hb-glib.cc
index a34acbba1..23a0d89c8 100644
--- a/src/hb-glib.cc
+++ b/src/hb-glib.cc
@@ -33,6 +33,16 @@
 #include "hb-machinery.hh"
 
 
+/**
+ * SECTION:hb-glib
+ * @title: hb-glib
+ * @short_description: GLib integration
+ * @include: hb-glib.h
+ *
+ * Functions for using HarfBuzz with the GLib library to provide Unicode data.
+ **/
+
+
 #if !GLIB_CHECK_VERSION(2,29,14)
 static const hb_script_t
 glib_script_to_script[] =
diff --git a/src/hb-gobject-structs.cc b/src/hb-gobject-structs.cc
index 1b8758583..23ca43656 100644
--- a/src/hb-gobject-structs.cc
+++ b/src/hb-gobject-structs.cc
@@ -26,6 +26,18 @@
 
 #include "hb.hh"
 
+
+/**
+ * SECTION:hb-gobject
+ * @title: hb-gobject
+ * @short_description: GObject integration
+ * @include: hb-gobject.h
+ *
+ * Functions for using HarfBuzz with the GObject library to provide
+ * type data.
+ **/
+
+
 /* g++ didn't like older gtype.h gcc-only code path. */
 #include <glib.h>
 #if !GLIB_CHECK_VERSION(2,29,16)
diff --git a/src/hb-graphite2.cc b/src/hb-graphite2.cc
index 022e8814a..971241f92 100644
--- a/src/hb-graphite2.cc
+++ b/src/hb-graphite2.cc
@@ -36,6 +36,16 @@
 #include "hb-ot-layout.h"
 
 
+/**
+ * SECTION:hb-graphite2
+ * @title: hb-graphite2
+ * @short_description: Graphite2 integration
+ * @include: hb-graphite2.h
+ *
+ * Functions for using HarfBuzz with the Graphite2 fonts.
+ **/
+
+
 HB_SHAPER_DATA_ENSURE_DEFINE(graphite2, face)
 HB_SHAPER_DATA_ENSURE_DEFINE(graphite2, font)
 
diff --git a/src/hb-icu.cc b/src/hb-icu.cc
index e012314b5..12864677c 100644
--- a/src/hb-icu.cc
+++ b/src/hb-icu.cc
@@ -40,6 +40,16 @@
 #include <unicode/uversion.h>
 
 
+/**
+ * SECTION:hb-icu
+ * @title: hb-icu
+ * @short_description: ICU integration
+ * @include: hb-icu.h
+ *
+ * Functions for using HarfBuzz with the ICU library to provide Unicode data.
+ **/
+
+
 hb_script_t
 hb_icu_script_to_script (UScriptCode script)
 {
diff --git a/src/hb-uniscribe.cc b/src/hb-uniscribe.cc
index c6f60b99c..b12a0539d 100644
--- a/src/hb-uniscribe.cc
+++ b/src/hb-uniscribe.cc
@@ -39,6 +39,16 @@
 #include "hb-ot-layout.h"
 
 
+/**
+ * SECTION:hb-uniscribe
+ * @title: hb-uniscribe
+ * @short_description: Windows integration
+ * @include: hb-uniscribe.h
+ *
+ * Functions for using HarfBuzz with the Windows fonts.
+ **/
+
+
 static inline uint16_t hb_uint16_swap (const uint16_t v)
 { return (v >> 8) | (v << 8); }
 static inline uint32_t hb_uint32_swap (const uint32_t v)