diff --git a/drawinglayer/source/primitive2d/polygonprimitive2d.cxx b/drawinglayer/source/primitive2d/polygonprimitive2d.cxx
index e363d8715398..05d3c84a381c 100644
--- a/drawinglayer/source/primitive2d/polygonprimitive2d.cxx
+++ b/drawinglayer/source/primitive2d/polygonprimitive2d.cxx
@@ -468,7 +468,7 @@ PolygonStrokePrimitive2D::getB2DRange(const geometry::ViewInformation2D& rViewIn
             // all directions and the rounded cap needs the same grow in all directions independent
             // from its orientation. Unfortunately this is not the case for drawing::LineCap_SQUARE
 
-            // NOTE: I thought about using [sqrt(2) * 0.5] a a factor for LineCap_SQUARE and not
+            // NOTE: I thought about using [sqrt(2) * 0.5] as a factor for LineCap_SQUARE and not
             // set bUseDecomposition. I even tried that it works. Then an auto-test failing showed
             // not only that view-dependent stuff needs to be considered (what is done for the
             // hairline case below), *BUT* also e.g. conversions to PNG/exports use the B2DRange
@@ -500,7 +500,7 @@ PolygonStrokePrimitive2D::getB2DRange(const geometry::ViewInformation2D& rViewIn
             //     and is correct when it already exists since the values the decomposition is
             //     based on cannot change.
             // (3) If this *is* done (like it was here) and the Primitive is derived from
-            //     BufferedDecompositionPrimitive2D and thus buffers it's decomposition,
+            //     BufferedDecompositionPrimitive2D and thus buffers its decomposition,
             //     the risk is that in this case the *wrong* decomposition will be used by
             //     other PrimitiveProcessors. Maybe not by the VclPixelProcessor2D/VclProcessor2D
             //     since it handles this primitive directly - not even sure for all cases.
@@ -508,7 +508,7 @@ PolygonStrokePrimitive2D::getB2DRange(const geometry::ViewInformation2D& rViewIn
             //     decomposition, and as an error, a non-stroked line will be painted/used.
             // (4) The B2DRange is not strictly defined as minimal bound for the geometry,
             //     but it should be as small/tight as possible. Making it larger risks more
-            //     area to be invalidated (repaint) and processed (all geometric stuff,l may
+            //     area to be invalidated (repaint) and processed (all geometric stuff, may
             //     include future and existing exports to other formats which are or will be
             //     implemented as PrimitiveProcessor). It is easy to imagine cases with much
             //     too large B2DRange - a line with a pattern that would solve to a single
@@ -537,7 +537,7 @@ PolygonStrokePrimitive2D::getB2DRange(const geometry::ViewInformation2D& rViewIn
             // Thus here I would use (c): It accepts the disadvantages of (4) over speed, but
             // avoids the errors/problems from (1-4).
             // Additional argument for this: The hairline case below *also* uses the full
-            // B2DRange of the polygon, ignoring an evtl. stroke, so (4) applies
+            // B2DRange of the polygon, ignoring an eventual stroke, so (4) applies
             if (!getStrokeAttribute().isDefault())
             {
                 // only do this if StrokeAttribute is used, else recursion may happen (!)
diff --git a/drawinglayer/source/primitive2d/textlayoutdevice.cxx b/drawinglayer/source/primitive2d/textlayoutdevice.cxx
index b97e29c55ab2..0d9d6fed2cb0 100644
--- a/drawinglayer/source/primitive2d/textlayoutdevice.cxx
+++ b/drawinglayer/source/primitive2d/textlayoutdevice.cxx
@@ -46,14 +46,14 @@ namespace
 {
 class ImpTimedRefDev;
 
-// VDev RevDevice provider
+// VDev RefDevice provider
 
-//the scoped_timed_RefDev owns an ImpTimeRefDev and releases it on dtor
+//the scoped_timed_RefDev owns an ImpTimedRefDev and releases it on dtor
 //or disposing of the default XComponentContext which causes the underlying
 //OutputDevice to get released
 
-//The ImpTimerRefDev itself, if the timeout ever gets hit, will call
-//reset on the scoped_timed_RefDev to release the ImpTimerRefDev early
+//The ImpTimedRefDev itself, if the timeout ever gets hit, will call
+//reset on the scoped_timed_RefDev to release the ImpTimedRefDev early
 //if it's unused for a few minutes
 class scoped_timed_RefDev : public comphelper::unique_disposing_ptr<ImpTimedRefDev>
 {
@@ -161,7 +161,7 @@ void releaseGlobalVirtualDevice()
 TextLayouterDevice::TextLayouterDevice()
     : mrDevice(acquireGlobalVirtualDevice())
 {
-    // tdf#168002 activate SubpixelPositioning for al TextLayouterDevice-calls
+    // tdf#168002 activate SubpixelPositioning for all TextLayouterDevice-calls
     mrDevice.setSubpixelPositioning(true);
 }
 
diff --git a/extensions/test/ole/DCOM/dcom_test/readme.txt b/extensions/test/ole/DCOM/dcom_test/readme.txt
index 215d6f409f2c..cf5d51aced54 100644
--- a/extensions/test/ole/DCOM/dcom_test/readme.txt
+++ b/extensions/test/ole/DCOM/dcom_test/readme.txt
@@ -1,5 +1,5 @@
-The program creates the com.sun.star.Servicemanager on a remote machine:
+The program creates the com.sun.star.ServiceManager on a remote machine:
 
 Set objServiceManager = CreateObject("com.sun.star.ServiceManager", "\\jl-1036")
 
-creates a document and writes in it.
\ No newline at end of file
+creates a document and writes in it.