diff --git a/src/gui/platform/darwin/qmacmimeregistry.mm b/src/gui/platform/darwin/qmacmimeregistry.mm
index acbe671e1a..6710a0656f 100644
--- a/src/gui/platform/darwin/qmacmimeregistry.mm
+++ b/src/gui/platform/darwin/qmacmimeregistry.mm
@@ -21,20 +21,6 @@ Q_GLOBAL_STATIC(QStringList, globalDraggedTypesList)
 // implemented in qutimimeconverter.mm
 void registerBuiltInTypes();
 
-/*!
-    \fn void qRegisterDraggedTypes(const QStringList &types)
-    \relates QUtiMimeConverter
-
-    Registers the given \a types as custom pasteboard types.
-
-    This function should be called to enable the Drag and Drop events
-    for custom pasteboard types on Cocoa implementations. This is required
-    in addition to a QUtiMimeConverter subclass implementation. By default
-    drag and drop is enabled for all standard pasteboard types.
-
-   \sa QUtiMimeConverter
-*/
-
 void registerDraggedTypes(const QStringList &types)
 {
     (*globalDraggedTypesList()) += types;
diff --git a/src/gui/platform/darwin/qutimimeconverter.mm b/src/gui/platform/darwin/qutimimeconverter.mm
index 975f00cf88..6a4f80a8d7 100644
--- a/src/gui/platform/darwin/qutimimeconverter.mm
+++ b/src/gui/platform/darwin/qutimimeconverter.mm
@@ -53,7 +53,21 @@ using namespace Qt::StringLiterals;
     By subclasses this class, one can extend Qt's drag and drop
     and clipboard handling to convert to and from unsupported, or proprietary, UTI formats.
 
-    A subclass of QUtiMimeConverter will automatically be registered, and active, upon instantiation.
+    Construct an instance of your converter implementation after instantiating
+    QGuiApplication:
+
+    \code
+    int main(int argc, char **argv)
+    {
+        QGuiApplication app(argc, argv);
+        JsonMimeConverter jsonConverter;
+    }
+    \endcode
+
+    Destroying the instance will unregister the converter and remove support
+    for the conversion. It is also valid to heap-allocate the converter
+    instance; Qt takes ownership and will delete the converter object during
+    QGuiApplication shut-down.
 
     Qt has predefined support for the following UTIs:
     \list
@@ -94,6 +108,8 @@ QUtiMimeConverter::QUtiMimeConverter(HandlerScope scope)
 /*!
     Constructs a new conversion object and adds it to the
     globally accessed list of available converters.
+
+    Call this constructor after QGuiApplication has been created.
 */
 QUtiMimeConverter::QUtiMimeConverter()
     : QUtiMimeConverter(HandlerScopeFlag::All)
diff --git a/src/gui/platform/windows/qwindowsmimeconverter.cpp b/src/gui/platform/windows/qwindowsmimeconverter.cpp
index d7998a3eb7..49d524cb99 100644
--- a/src/gui/platform/windows/qwindowsmimeconverter.cpp
+++ b/src/gui/platform/windows/qwindowsmimeconverter.cpp
@@ -25,6 +25,22 @@ QT_BEGIN_NAMESPACE
     conversions between Windows Clipboard and MIME formats, you can convert
     proprietary clipboard formats to MIME formats.
 
+    Construct an instance of your converter implementation after instantiating
+    QGuiApplication:
+
+    \code
+    int main(int argc, char **argv)
+    {
+        QGuiApplication app(argc, argv);
+        JsonMimeConverter jsonConverter;
+    }
+    \endcode
+
+    Destroying the instance will unregister the converter and remove support
+    for the conversion. It is also valid to heap-allocate the converter
+    instance; Qt takes ownership and will delete the converter object during
+    QGuiApplication shut-down.
+
     Qt has predefined support for the following Windows Clipboard formats:
 
     \table
@@ -112,6 +128,8 @@ QT_BEGIN_NAMESPACE
 
     The instance is automatically registered, and will be called to convert data during
     clipboard or drag'n'drop operations.
+
+    Call this constructor after QGuiApplication has been created.
 */
 QWindowsMimeConverter::QWindowsMimeConverter()
 {