PdfDocumentProcessor.CreateGraphics() Method

Creates a new instance of the PdfGraphics used to draw graphics on a PDF document.

Namespace: DevExpress.Pdf

Assembly: DevExpress.Docs.v19.1.dll

Declaration

C#

public PdfGraphics CreateGraphics()

VB.NET

Public Function CreateGraphics As PdfGraphics

Returns

Type	Description
PdfGraphics	A PdfGraphics object used as a drawing context.

Remarks

Call this method to create a PdfGraphics instance used to create an image (PdfGraphics.DrawImage), text (PdfGraphics.DrawString) and graphic elements on a document.

Call one of the PdfDocumentProcessor.RenderNewPage overload methods with the specified paper size and created graphics to add graphic content to a new PDF page.

Call the PdfGraphics.AddToPageForeground and PdfGraphics.AddToPageBackground methods to add graphics to an existing document.

Refer to the PDF Graphics section for more information on PDF graphics.

Example

Note

A complete sample project is available at https://github.com/DevExpress-Examples/how-to-generate-a-document-layout-from-scratch-t244516

Program.cs

using DevExpress.Pdf;
using System;
using System.Drawing;

namespace DocumentCreationAPI
{
    class Program {

        static void Main(string[] args)
        {

            using (PdfDocumentProcessor processor = new PdfDocumentProcessor())
            {

                // Create an empty document.
                processor.CreateEmptyDocument("..\\..\\Result.pdf");

                // Create and draw PDF graphics.
                using (PdfGraphics graph = processor.CreateGraphics())
                {
                    DrawGraphics(graph);

                    // Render a page with graphics.
                    processor.RenderNewPage(PdfPaperSize.Letter, graph);
                }
            }
        }

        static void DrawGraphics(PdfGraphics graph)
        {

            // Draw text lines on the page. 
            SolidBrush black = (SolidBrush)Brushes.Black;
            using (Font font1 = new Font("Times New Roman", 32, FontStyle.Bold))
            {
                graph.DrawString("PDF Document Processor", font1, black, 180, 150);
            }
            using (Font font2 = new Font("Arial", 20)) {
                graph.DrawString("Display, Print and Export PDF Documents", font2, black, 168, 230);
            }
            using (Font font3 = new Font("Arial", 10)) {
                graph.DrawString("The PDF Document Processor is a non-visual component " +
                                  "that provides the application programming interface of the PDF Viewer.", font3, black, 16, 300);
            }
        }
    }
}

Program.vb

Imports DevExpress.Pdf
Imports System
Imports System.Drawing

Namespace DocumentCreationAPI
    Friend Class Program

        Shared Sub Main(ByVal args() As String)

            Using processor As New PdfDocumentProcessor()

                ' Create an empty document.
                processor.CreateEmptyDocument("..\..\Result.pdf")

                ' Create and draw PDF graphics.
                Using graph As PdfGraphics = processor.CreateGraphics()
                    DrawGraphics(graph)

                    ' Render a page with graphics.
                    processor.RenderNewPage(PdfPaperSize.Letter, graph)
                End Using
            End Using
        End Sub

        Private Shared Sub DrawGraphics(ByVal graph As PdfGraphics)

            ' Draw text lines on the page. 
            Dim black As SolidBrush = CType(Brushes.Black, SolidBrush)
            Using font1 As New Font("Times New Roman", 32, FontStyle.Bold)
                graph.DrawString("PDF Document Processor", font1, black, 180, 150)
            End Using
            Using font2 As New Font("Arial", 20)
                graph.DrawString("Display, Print and Export PDF Documents", font2, black, 168, 230)
            End Using
            Using font3 As New Font("Arial", 10)
                graph.DrawString("The PDF Document Processor is a non-visual component " & "that provides the application programming interface of the PDF Viewer.", font3, black, 16, 300)
            End Using
        End Sub
    End Class
End Namespace

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the CreateGraphics() method.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

pdf-document-api-create-check-box-field/CS/AddCheckBoxField/Program.cs#L13

// Create graphics and draw a check box field.
using (PdfGraphics graphics = processor.CreateGraphics()) {
    DrawCheckBoxField(graphics);

pdf-document-api-create-combo-box-field/CS/AddComboBoxField/Program.cs#L14

// Create graphics and draw a combo box field.
using (PdfGraphics graphics = processor.CreateGraphics()) {
    DrawComboBoxField(graphics);

pdf-document-api-add-link-to-page/CS/AddLinkToPage/Program.cs#L14

// Create and draw graphics.
using (PdfGraphics graphics = processor.CreateGraphics()) {
    DrawGraphics(graphics);

pdf-document-api-create-radio-button-group-field/CS/AddRadioButtonField/Program.cs#L13

// Create graphics and draw a radio button field.
using (PdfGraphics graphics = processor.CreateGraphics()) {
    DrawRadioButtonGroupField(graphics);

pdf-document-api-create-list-box-field/CS/AddListBoxField/Program.cs#L13

// Create graphics and draw a list box field.
using (PdfGraphics graphics = processor.CreateGraphics()) {
    DrawListBoxField(graphics);

VB.NET

pdf-document-api-create-check-box-field/VB/AddCheckBoxField/Program.vb#L13

' Create graphics and draw a check box field.
Using graphics As PdfGraphics = processor.CreateGraphics()
    DrawCheckBoxField(graphics)

pdf-document-api-create-combo-box-field/VB/AddComboBoxField/Program.vb#L13

' Create graphics and draw a combo box field.
Using graphics As PdfGraphics = processor.CreateGraphics()
    DrawComboBoxField(graphics)

pdf-document-api-add-link-to-page/VB/AddLinkToPage/Program.vb#L13

' Create and draw graphics.
Using graphics As PdfGraphics = processor.CreateGraphics()
    DrawGraphics(graphics)

pdf-document-api-create-radio-button-group-field/VB/AddRadioButtonField/Program.vb#L13

' Create graphics and draw a radio button field.
Using graphics As PdfGraphics = processor.CreateGraphics()
    DrawRadioButtonGroupField(graphics)

pdf-document-api-create-list-box-field/VB/AddListBoxField/Program.vb#L13

' Create graphics and draw a list box field.
Using graphics As PdfGraphics = processor.CreateGraphics()
    DrawListBoxField(graphics)