PaperSize

public enum PaperSize

Document doc = new Document();
DocumentBuilder builder = new DocumentBuilder(doc);

builder.PageSetup.PaperSize = PaperSize.Legal;
builder.PageSetup.Orientation = Orientation.Landscape;
builder.PageSetup.TopMargin = ConvertUtil.InchToPoint(1.0);
builder.PageSetup.BottomMargin = ConvertUtil.InchToPoint(1.0);
builder.PageSetup.LeftMargin = ConvertUtil.InchToPoint(1.5);
builder.PageSetup.RightMargin = ConvertUtil.InchToPoint(1.5);
builder.PageSetup.HeaderDistance = ConvertUtil.InchToPoint(0.2);
builder.PageSetup.FooterDistance = ConvertUtil.InchToPoint(0.2);

builder.Writeln("Hello world!");

doc.Save(ArtifactsDir + "PageSetup.PageMargins.docx");

Document doc = new Document();
DocumentBuilder builder = new DocumentBuilder(doc);

// We can change the current page's size to a pre-defined size
// by using the "PaperSize" property of this section's PageSetup object.
builder.PageSetup.PaperSize = PaperSize.Tabloid;

Assert.AreEqual(792.0d, builder.PageSetup.PageWidth);
Assert.AreEqual(1224.0d, builder.PageSetup.PageHeight);

builder.Writeln($"This page is {builder.PageSetup.PageWidth}x{builder.PageSetup.PageHeight}.");

// Each section has its own PageSetup object. When we use a document builder to make a new section,
// that section's PageSetup object inherits all the previous section's PageSetup object's values.
builder.InsertBreak(BreakType.SectionBreakEvenPage);

Assert.AreEqual(PaperSize.Tabloid, builder.PageSetup.PaperSize);

builder.PageSetup.PaperSize = PaperSize.A5;
builder.Writeln($"This page is {builder.PageSetup.PageWidth}x{builder.PageSetup.PageHeight}.");

Assert.AreEqual(419.55d, builder.PageSetup.PageWidth);
Assert.AreEqual(595.30d, builder.PageSetup.PageHeight);

builder.InsertBreak(BreakType.SectionBreakEvenPage);

// Set a custom size for this section's pages.
builder.PageSetup.PageWidth = 620;
builder.PageSetup.PageHeight = 480;

Assert.AreEqual(PaperSize.Custom, builder.PageSetup.PaperSize);

builder.Writeln($"This page is {builder.PageSetup.PageWidth}x{builder.PageSetup.PageHeight}.");

doc.Save(ArtifactsDir + "PageSetup.PaperSizes.docx");

Document doc = new Document();

// A blank document contains one section, one body and one paragraph.
// Call the "RemoveAllChildren" method to remove all those nodes,
// and end up with a document node with no children.
doc.RemoveAllChildren();

// This document now has no composite child nodes that we can add content to.
// If we wish to edit it, we will need to repopulate its node collection.
// First, create a new section, and then append it as a child to the root document node.
Section section = new Section(doc);
doc.AppendChild(section);

// Set some page setup properties for the section.
section.PageSetup.SectionStart = SectionStart.NewPage;
section.PageSetup.PaperSize = PaperSize.Letter;

// A section needs a body, which will contain and display all its contents
// on the page between the section's header and footer.
Body body = new Body(doc);
section.AppendChild(body);

// Create a paragraph, set some formatting properties, and then append it as a child to the body.
Paragraph para = new Paragraph(doc);

para.ParagraphFormat.StyleName = "Heading 1";
para.ParagraphFormat.Alignment = ParagraphAlignment.Center;

body.AppendChild(para);

// Finally, add some content to do the document. Create a run,
// set its appearance and contents, and then append it as a child to the paragraph.
Run run = new Run(doc);
run.Text = "Hello World!";
run.Font.Color = Color.Red;
para.AppendChild(run);

Assert.AreEqual("Hello World!", doc.GetText().Trim());

doc.Save(ArtifactsDir + "Section.CreateManually.docx");