diff --git a/src/Mod/TechDraw/App/DrawViewAnnotation.cpp b/src/Mod/TechDraw/App/DrawViewAnnotation.cpp
index 672a69279d..0024dcb93d 100644
--- a/src/Mod/TechDraw/App/DrawViewAnnotation.cpp
+++ b/src/Mod/TechDraw/App/DrawViewAnnotation.cpp
@@ -66,9 +66,9 @@ DrawViewAnnotation::DrawViewAnnotation(void)
     ADD_PROPERTY_TYPE(Font ,(fontName.c_str()),vgroup,App::Prop_None, "The name of the font to use");
     ADD_PROPERTY_TYPE(TextColor,(0.0f,0.0f,0.0f),vgroup,App::Prop_None,"The color of the text");
 
-    ADD_PROPERTY_TYPE(TextSize,(8),vgroup,App::Prop_None,"The size of the text in mm");
+    ADD_PROPERTY_TYPE(TextSize,(8.0),vgroup,App::Prop_None,"The size of the text in units");
     ADD_PROPERTY_TYPE(MaxWidth,(-1.0),vgroup,App::Prop_None,"The maximum width of the Annotation block");
-    ADD_PROPERTY_TYPE(LineSpace,(80),vgroup,App::Prop_None,"Line spacing adjustment");
+    ADD_PROPERTY_TYPE(LineSpace,(80),vgroup,App::Prop_None,"Line spacing adjustment. 100 is normal spacing.");
 
     TextStyle.setEnums(TextStyleEnums);
     ADD_PROPERTY(TextStyle, ((long)0));
@@ -120,7 +120,7 @@ QRectF DrawViewAnnotation::getRect() const
 }
 
 App::DocumentObjectExecReturn *DrawViewAnnotation::execute(void)
-{
+{
     requestPaint();
     return TechDraw::DrawView::execute();
 }
diff --git a/src/Mod/TechDraw/App/DrawViewAnnotation.h b/src/Mod/TechDraw/App/DrawViewAnnotation.h
index d2b9b743df..352410da8b 100644
--- a/src/Mod/TechDraw/App/DrawViewAnnotation.h
+++ b/src/Mod/TechDraw/App/DrawViewAnnotation.h
@@ -30,6 +30,7 @@
 #include <App/DocumentObject.h>
 #include <App/PropertyLinks.h>
 #include <App/PropertyStandard.h>
+#include <App/PropertyUnits.h>
 #include <App/FeaturePython.h>
 
 #include "DrawView.h"
@@ -50,7 +51,7 @@ public:
     App::PropertyStringList   Text;
     App::PropertyFont         Font;
     App::PropertyColor        TextColor;
-    App::PropertyInteger      TextSize;
+    App::PropertyLength       TextSize;
     App::PropertyInteger      LineSpace;
     App::PropertyEnumeration  TextStyle; // Plain,Bold,Italic,Bold-Italic
     App::PropertyFloat        MaxWidth;
diff --git a/src/Mod/TechDraw/Gui/ViewProviderDimension.cpp b/src/Mod/TechDraw/Gui/ViewProviderDimension.cpp
index e93e3e1a12..edcb773f56 100644
--- a/src/Mod/TechDraw/Gui/ViewProviderDimension.cpp
+++ b/src/Mod/TechDraw/Gui/ViewProviderDimension.cpp
@@ -62,7 +62,7 @@ ViewProviderDimension::ViewProviderDimension()
     double fontSize = hGrp->GetFloat("FontSize", 3.5);
 
     ADD_PROPERTY_TYPE(Font ,(fontName.c_str()),group,App::Prop_None, "The name of the font to use");
-    ADD_PROPERTY_TYPE(Fontsize,(fontSize)    ,group,(App::PropertyType)(App::Prop_None),"Dimension text size in mm");
+    ADD_PROPERTY_TYPE(Fontsize,(fontSize)    ,group,(App::PropertyType)(App::Prop_None),"Dimension text size in units");
 
     hGrp = App::GetApplication().GetUserParameter().GetGroup("BaseApp")->GetGroup("Preferences")->GetGroup("Mod/TechDraw/Decorations");
     std::string lgName = hGrp->GetASCII("LineGroup","FC 0.70mm");
diff --git a/src/Mod/TechDraw/Gui/ViewProviderDimension.h b/src/Mod/TechDraw/Gui/ViewProviderDimension.h
index 7ff02c2b43..49821493e5 100644
--- a/src/Mod/TechDraw/Gui/ViewProviderDimension.h
+++ b/src/Mod/TechDraw/Gui/ViewProviderDimension.h
@@ -25,6 +25,8 @@
 #ifndef DRAWINGGUI_VIEWPROVIDERDIMENSION_H
 #define DRAWINGGUI_VIEWPROVIDERDIMENSION_H
 
+#include <App/PropertyUnits.h>
+
 #include "ViewProviderDrawingView.h"
 #include <Mod/TechDraw/App/DrawViewDimension.h>
 
@@ -42,10 +44,10 @@ public:
     /// destructor
     virtual ~ViewProviderDimension();
 
-    App::PropertyFont    Font;
-    App::PropertyFloat   Fontsize;
-    App::PropertyFloat   LineWidth;
-    App::PropertyColor   Color;
+    App::PropertyFont     Font;
+    App::PropertyLength   Fontsize;
+    App::PropertyFloat    LineWidth;
+    App::PropertyColor    Color;
 
 
     virtual void attach(App::DocumentObject *);