PdfDocumentProcessor Class
A non-visual component that allows you to easily generate PDF files from scratch and manipulate existing PDF documents. See PDF Document API.
Namespace: DevExpress.Pdf
Assembly: DevExpress.Docs.v18.2.dll
Declaration
Example
This example shows how to programmatically create a document with graphics using the PDF Document Creation API.
To generate a document using the Document Creation API:
- Create an empty document with no pages by calling one of the PdfDocumentProcessor.CreateEmptyDocument overload methods (e.g., using a file path).
- Create PDF graphics represented by an instance of the PdfGraphics class, calling the PdfDocumentProcessor.CreateGraphics method. To access PdfGraphics, you need to reference the DevExpress.Pdf.Drawing assembly.
- Draw the graphic content (e.g., an image, a string, lines, polygons) by calling the corresponding Draw method.
- Render a page with created graphics by calling the PdfDocumentProcessor.RenderNewPage method.
Note
A complete sample project is available at https://github.com/DevExpress-Examples/how-to-generate-a-document-layout-from-scratch-t244516
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
Inheritance
Object
DevExpress.Pdf.Native.PdfDisposableObject
PdfDocumentProcessor
See Also