diff --git a/OpenXmlFormats/Wordprocessing/Paragraph.cs b/OpenXmlFormats/Wordprocessing/Paragraph.cs
index ee98e9284..4369db897 100644
--- a/OpenXmlFormats/Wordprocessing/Paragraph.cs
+++ b/OpenXmlFormats/Wordprocessing/Paragraph.cs
@@ -1211,11 +1211,24 @@ public CT_NumPr AddNewNumPr()
                 this.numPr = new CT_NumPr();
             return this.numPr;
         }
+        public CT_SectPr AddNewSectPr()
+        {
+            if(this.sectPrField==null)
+            { 
+                this.sectPrField = new CT_SectPr();
+            }
+            return this.sectPrField;
+        }
 
         public bool IsSetSpacing()
         {
             return this.spacing != null;
         }
+
+        public bool IsSetSectPr()
+        { 
+            return this.sectPr != null;
+        }
     }
 
 
@@ -3030,6 +3043,18 @@ public bool IsSetTitlePg()
             return this.titlePgField != null;
         }
 
+        public bool IsSetPgSz()
+        { 
+            return this.pgSzField != null;
+        }
+
+        public CT_PageSz AddNewPgSz()
+        {
+            if(this.pgSzField == null)
+                this.pgSzField = new CT_PageSz();
+            return this.pgSzField;
+        }
+
         public CT_OnOff AddNewTitlePg()
         {
             if (this.titlePgField == null)
diff --git a/ooxml/XWPF/Usermodel/XWPFParagraph.cs b/ooxml/XWPF/Usermodel/XWPFParagraph.cs
index c82a58b9c..c3b522752 100644
--- a/ooxml/XWPF/Usermodel/XWPFParagraph.cs
+++ b/ooxml/XWPF/Usermodel/XWPFParagraph.cs
@@ -1819,6 +1819,34 @@ public XWPFFieldRun CreateFieldRun()
             return newRun;
         }
 
+        public void ChangeOrientation(ST_PageOrientation orientation)
+        {
+            var pPr = paragraph.IsSetPPr()
+            ? paragraph.pPr
+            : paragraph.AddNewPPr();
+
+            // Create <w:sectPr> inside <w:pPr>
+            var sectPr = pPr.IsSetSectPr()
+            ? pPr.sectPr
+            : pPr.AddNewSectPr();
+
+            var pageSize = sectPr.IsSetPgSz()
+            ? sectPr.pgSz
+            : sectPr.AddNewPgSz();
+
+            pageSize.orient = orientation;
+            if(orientation== ST_PageOrientation.landscape)
+            {
+                pageSize.w = 842 * 20;
+                pageSize.h = 595 * 20;
+            }
+            else
+            {
+                pageSize.h = 842 * 20;
+                pageSize.w = 595 * 20;
+            }
+        }
+
         private bool IsTheOnlyCTHyperlinkInRuns(XWPFHyperlinkRun run)
         {
             CT_Hyperlink1 ctHyperlink = run.GetCTHyperlink();