How to Draw Text in PDF Document in Silverlight

Draw text in PDF document is an important part and it is not easy to finish. With the help of Spire.PDF, a PDF component, you can not only draw text in PDF document easily for .NET and WPF, you can do this job easily for Silverlight.

We have introduced how to draw text for PDF .NET and PDF WPF. This article will give clear information of how to draw text with C# code for Silverlight.

Make sure Spire.PDF (or Spire.Office) has been installed correctly. Add Spire.PDF.dll as reference in the downloaded Bin folder though the below path: "..\Spire.PDF\Bin\Silverlight4\ Spire.PDF.dll".

Here comes to the steps:

Step 1: Create a PDF document and a page

[C#]
//create a pdf document
PdfDocument document = new PdfDocument();
//create one page
PdfPageBase page = document.Pages.Add();

Step 2: Draw Text

[C#]
//Draw Text - alignment
PdfFont font = new PdfFont(PdfFontFamily.Helvetica, 20f);
PdfSolidBrush brush = new PdfSolidBrush(Color.FromArgb(10, 0, 255, 0));

PdfStringFormat leftAlignment = new PdfStringFormat(PdfTextAlignment.Left, PdfVerticalAlignment.Middle);
page.Canvas.DrawString("Left!", font, brush, 0, 20, leftAlignment);
page.Canvas.DrawString("Left!", font, brush, 0, 50, leftAlignment);

PdfStringFormat rightAlignment = new PdfStringFormat(PdfTextAlignment.Right, PdfVerticalAlignment.Middle);
page.Canvas.DrawString("Right!", font, brush, page.Canvas.ClientSize.Width, 30, rightAlignment);
page.Canvas.DrawString("Right!", font, brush, page.Canvas.ClientSize.Width, 60, rightAlignment);

PdfStringFormat centerAlignment = new PdfStringFormat(PdfTextAlignment.Center, PdfVerticalAlignment.Middle);
page.Canvas.DrawString("Go! Turn Around! Go! Go! Go!", font, brush, page.Canvas.ClientSize.Width / 2, 40, centerAlignment);

//Draw the text - align in rectangle
PdfFont font = new PdfFont(PdfFontFamily.Helvetica, 10f);
PdfSolidBrush brush = new PdfSolidBrush(Color.FromArgb(10, 0, 0, 255));
RectangleF rctg1 = new RectangleF(0, 70, page.Canvas.ClientSize.Width / 2, 100);
RectangleF rctg2 = new RectangleF(page.Canvas.ClientSize.Width / 2, 70, page.Canvas.ClientSize.Width / 2, 100);
page.Canvas.DrawRectangle(new PdfSolidBrush(Color.FromArgb(1, 0, 0, 100)), rctg1);
page.Canvas.DrawRectangle(new PdfSolidBrush(Color.FromArgb(1, 0, 0, 150)), rctg2);

PdfStringFormat leftAlignment = new PdfStringFormat(PdfTextAlignment.Left, PdfVerticalAlignment.Top);
page.Canvas.DrawString("Left! Left!", font, brush, rctg1, leftAlignment);
page.Canvas.DrawString("Left! Left!", font, brush, rctg2, leftAlignment);

PdfStringFormat rightAlignment = new PdfStringFormat(PdfTextAlignment.Right, PdfVerticalAlignment.Middle);
page.Canvas.DrawString("Right! Right!", font, brush, rctg1, rightAlignment);
page.Canvas.DrawString("Right! Right!", font, brush, rctg2, rightAlignment);

PdfStringFormat centerAlignment = new PdfStringFormat(PdfTextAlignment.Center, PdfVerticalAlignment.Bottom);
page.Canvas.DrawString("Go! Turn Around! Go! Go! Go!", font, brush, rctg1, centerAlignment);
page.Canvas.DrawString("Go! Turn Around! Go! Go! Go!", font, brush, rctg2, centerAlignment);

//Draw text - brush
String text = "Go! Turn Around! Go! Go! Go!";
PdfPen pen = PdfPens.DeepSkyBlue;
PdfSolidBrush brush = new PdfSolidBrush(Color.FromArgb(10, 0, 0, 0));
PdfStringFormat format = new PdfStringFormat();
PdfFont font = new PdfFont(PdfFontFamily.Helvetica, 18f, PdfFontStyle.Italic);
SizeF size = font.MeasureString(text, format);
RectangleF rctg= new RectangleF(page.Canvas.ClientSize.Width / 2 + 10, 180,
size.Width / 3 * 2, size.Height * 2);
page.Canvas.DrawString(text, font, pen, brush, rctg, format);

Step 3: Save the document to stream

[C#]
using (Stream ms = saveFiledialog.OpenFile())
{
    document.SaveToStream(ms);

}

Now check the effective screenshot:

Draw_Text_in_PDF_Document_for_Silverlight.png