static void AddWatermark(WordprocessingDocument doc, string textWatermark) { if (doc.MainDocumentPart.HeaderParts.Count() == 0) { doc.MainDocumentPart.DeleteParts(doc.MainDocumentPart.HeaderParts); var newHeaderPart = doc.MainDocumentPart.AddNewPart <HeaderPart>(); var rId = doc.MainDocumentPart.GetIdOfPart(newHeaderPart); var headerRef = new HeaderReference(); headerRef.Id = rId; var sectionProps = doc.MainDocumentPart.Document.Body.Elements <SectionProperties>().LastOrDefault(); if (sectionProps == null) { sectionProps = new SectionProperties(); doc.MainDocumentPart.Document.Body.Append(sectionProps); } sectionProps.RemoveAllChildren <HeaderReference>(); sectionProps.Append(headerRef); newHeaderPart.Header = MakeHeader(); newHeaderPart.Header.Save(); } foreach (HeaderPart headerPart in doc.MainDocumentPart.HeaderParts) { var sdtBlock1 = new SdtBlock(); var sdtProperties1 = new SdtProperties(); var sdtId1 = new SdtId() { Val = 87908844 }; var sdtContentDocPartObject1 = new SdtContentDocPartObject(); var docPartGallery1 = new DocPartGallery() { Val = "Watermarks" }; var docPartUnique1 = new DocPartUnique(); sdtContentDocPartObject1.Append(docPartGallery1); sdtContentDocPartObject1.Append(docPartUnique1); sdtProperties1.Append(sdtId1); sdtProperties1.Append(sdtContentDocPartObject1); var sdtContentBlock1 = new SdtContentBlock(); var paragraph2 = new Paragraph() { RsidParagraphAddition = "00656E18", RsidRunAdditionDefault = "00656E18" }; var paragraphProperties2 = new ParagraphProperties(); var paragraphStyleId2 = new ParagraphStyleId() { Val = "Header" }; paragraphProperties2.Append(paragraphStyleId2); var run1 = new Run(); var runProperties1 = new RunProperties(); var noProof1 = new NoProof(); var languages1 = new Languages() { EastAsia = "zh-TW" }; runProperties1.Append(noProof1); runProperties1.Append(languages1); var picture1 = new Picture(); var shapetype1 = new Shapetype() { Id = "_x0000_t136", CoordinateSize = "21600,21600", OptionalNumber = 136, Adjustment = "10800", EdgePath = "m@7,l@8,m@5,21600l@6,21600e" }; var formulas1 = new Formulas(); var formula1 = new Formula() { Equation = "sum #0 0 10800" }; var formula2 = new Formula() { Equation = "prod #0 2 1" }; var formula3 = new Formula() { Equation = "sum 21600 0 @1" }; var formula4 = new Formula() { Equation = "sum 0 0 @2" }; var formula5 = new Formula() { Equation = "sum 21600 0 @3" }; var formula6 = new Formula() { Equation = "if @0 @3 0" }; var formula7 = new Formula() { Equation = "if @0 21600 @1" }; var formula8 = new Formula() { Equation = "if @0 0 @2" }; var formula9 = new Formula() { Equation = "if @0 @4 21600" }; var formula10 = new Formula() { Equation = "mid @5 @6" }; var formula11 = new Formula() { Equation = "mid @8 @5" }; var formula12 = new Formula() { Equation = "mid @7 @8" }; var formula13 = new Formula() { Equation = "mid @6 @7" }; var formula14 = new Formula() { Equation = "sum @6 0 @5" }; formulas1.Append(formula1); formulas1.Append(formula2); formulas1.Append(formula3); formulas1.Append(formula4); formulas1.Append(formula5); formulas1.Append(formula6); formulas1.Append(formula7); formulas1.Append(formula8); formulas1.Append(formula9); formulas1.Append(formula10); formulas1.Append(formula11); formulas1.Append(formula12); formulas1.Append(formula13); formulas1.Append(formula14); var path1 = new Path() { AllowTextPath = TrueFalseValue.FromBoolean(true), ConnectionPointType = ConnectValues.Custom, ConnectionPoints = "@9,0;@10,10800;@11,21600;@12,10800", ConnectAngles = "270,180,90,0" }; var textPath1 = new TextPath() { On = TrueFalseValue.FromBoolean(true), FitShape = TrueFalseValue.FromBoolean(true) }; var shapeHandles1 = new ShapeHandles(); var shapeHandle1 = new ShapeHandle() { Position = "#0,bottomRight", XRange = "6629,14971" }; shapeHandles1.Append(shapeHandle1); var lock1 = new Lock { Extension = ExtensionHandlingBehaviorValues.Edit, TextLock = TrueFalseValue.FromBoolean(true), ShapeType = TrueFalseValue.FromBoolean(true) }; shapetype1.Append(formulas1); shapetype1.Append(path1); shapetype1.Append(textPath1); shapetype1.Append(shapeHandles1); shapetype1.Append(lock1); var shape1 = new Shape() { Id = "PowerPlusWaterMarkObject357922611", Style = "position:absolute;left:0;text-align:left;margin-left:0;margin-top:0;width:527.85pt;height:131.95pt;rotation:315;z-index:-251656192;mso-position-horizontal:center;mso-position-horizontal-relative:margin;mso-position-vertical:center;mso-position-vertical-relative:margin", OptionalString = "_x0000_s2049", AllowInCell = TrueFalseValue.FromBoolean(true), FillColor = "silver", Stroked = TrueFalseValue.FromBoolean(false), Type = "#_x0000_t136" }; var fill1 = new Fill() { Opacity = ".5" }; TextPath textPath2 = new TextPath() { Style = "font-family:\"Calibri\";font-size:1pt", String = textWatermark }; var textWrap1 = new TextWrap() { AnchorX = HorizontalAnchorValues.Margin, AnchorY = VerticalAnchorValues.Margin }; shape1.Append(fill1); shape1.Append(textPath2); shape1.Append(textWrap1); picture1.Append(shapetype1); picture1.Append(shape1); run1.Append(runProperties1); run1.Append(picture1); paragraph2.Append(paragraphProperties2); paragraph2.Append(run1); sdtContentBlock1.Append(paragraph2); sdtBlock1.Append(sdtProperties1); sdtBlock1.Append(sdtContentBlock1); headerPart.Header.Append(sdtBlock1); headerPart.Header.Save(); //break; } }