Available for: UI for ASP.NET AJAX | UI for ASP.NET MVC | UI for WPF | UI for WinForms | UI for Silverlight | UI for Xamarin


The PdfPageSource class represents the page content of an existing PDF file.

Using PdfPageSource

Create an Instance

An instance of the PdfPageSource class can be obtained using the Pages property of PdfFileSource.

Example 1: Obtain an instance of PdfPageSource

using (PdfFileSource fileSource = new PdfFileSource(File.OpenRead(path))) 
    foreach (PdfPageSource pageSource in fileSource.Pages) 
        // ...                   


PdfPageSource exposes the following properties to give you information about the pages:

  • MediaBox: Defines the boundaries of the physical medium on which the page will be printed. Any content falling outside this boundary is discarded without affecting the meaning of the PDF file.
  • CropBox: Defines the region to which the contents of the page are clipped (cropped) when displayed or printed. This boundary determines the visible page content. The default value is the page’s media box.
  • Size: Property of type Size representing the size of the page. Its value is determined by the width and height of the MediaBox.
  • Rotation: Property of type Rotation representing the page rotation.

Example 2 shows how you can use PdfPageSource to merge the pages of several documents into a single one.

Example 2: Merge the pages of several documents

// Create a PdfStreamWriter instance, responsible to write the document into the specified file 
using (PdfStreamWriter fileWriter = new PdfStreamWriter(File.OpenWrite(resultFile))) 
    // Iterate through the files you would like to merge 
    foreach(string documentName in documentsToMerge) 
        // Open each of the files 
        using (PdfFileSource fileToMerge = new PdfFileSource(File.OpenRead(documentName))) 
            // Iterate through the pages of the current document 
            foreach(PdfPageSource pageToMerge in fileToMerge.Pages) 
                // Append the current page to the fileWriter, which holds the stream of the result file 

See Also

In this article
Not finding the help you need? Improve this article