ConvertUtil class

Provides helper functions to convert between various measurement units.

To learn more, visit the Convert Between Measurement Units documentation article.

public static class ConvertUtil


static InchToPoint(double)Converts inches to points.
static MillimeterToPoint(double)Converts millimeters to points.
static PixelToNewDpi(double, double, double)Converts pixels from one resolution to another.
static PixelToPoint(double)Converts pixels to points at 96 dpi.
static PixelToPoint(double, double)Converts pixels to points at the specified pixel resolution.
static PointToInch(double)Converts points to inches.
static PointToPixel(double)Converts points to pixels at 96 dpi.
static PointToPixel(double, double)Converts points to pixels at the specified pixel resolution.


Shows how to adjust paper size, orientation, margins, along with other settings for a section.

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");

Shows how to specify page properties in inches.

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

// A section's "Page Setup" defines the size of the page margins in points.
// We can also use the "ConvertUtil" class to use a more familiar measurement unit,
// such as inches when defining boundaries.
PageSetup pageSetup = builder.PageSetup;
pageSetup.TopMargin = ConvertUtil.InchToPoint(1.0);
pageSetup.BottomMargin = ConvertUtil.InchToPoint(2.0);
pageSetup.LeftMargin = ConvertUtil.InchToPoint(2.5);
pageSetup.RightMargin = ConvertUtil.InchToPoint(1.5);

// An inch is 72 points.
Assert.AreEqual(72.0d, ConvertUtil.InchToPoint(1));
Assert.AreEqual(1.0d, ConvertUtil.PointToInch(72));

// Add content to demonstrate the new margins.
builder.Writeln($"This Text is {pageSetup.LeftMargin} points/{ConvertUtil.PointToInch(pageSetup.LeftMargin)} inches from the left, " +
                $"{pageSetup.RightMargin} points/{ConvertUtil.PointToInch(pageSetup.RightMargin)} inches from the right, " +
                $"{pageSetup.TopMargin} points/{ConvertUtil.PointToInch(pageSetup.TopMargin)} inches from the top, " +
                $"and {pageSetup.BottomMargin} points/{ConvertUtil.PointToInch(pageSetup.BottomMargin)} inches from the bottom of the page.");

doc.Save(ArtifactsDir + "UtilityClasses.PointsAndInches.docx");

See Also