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Overview

The PdfFileSource class represents the content of an existing PDF file.

Using PdfFileSource

Create an Instance

To create an instance of PdfFileSource, you should pass a FileStream object, containing the PDF document, to the constructor of the class.

Example 1: Create a PdfFileSource

using (PdfFileSource fileSource = new PdfFileSource(File.OpenRead(path))) 
{ 
    // ... 
} 
PdfFileSource exposes also an additional overload, which allows you to keep the stream you are working with open after disposing the PdfFileSource instance by passing true as a value for the second constructor parameter (leaveStreamOpen).

An additional option you can use is the overload that accepts a parameter of type PdfImportSettings. This overload enables you to handle password encrypted documents.

Example 2: Open encrypted document

public void ReadDocument(string path) 
{ 
    PdfImportSettings importSettings = new PdfImportSettings(); 
    importSettings.UserPasswordNeeded += this.Settings_UserPasswordNeeded; 
 
    using (PdfFileSource fileSource = new PdfFileSource(File.OpenRead(path), importSettings, leaveStreamOpen: false)) 
    { 
        // ... 
    } 
} 
 
private void Settings_UserPasswordNeeded(object sender, PasswordNeededEventArgs e) 
{ 
    e.Password = "pass"; 
} 

PdfFileSource inherits from IDisposable. Make sure the object is disposed when you are done with it. The best way to ensure this is handled properly is to wrap it in a using statement.

Members

PdfFileSource exposes the Pages property, which is of type PdfPageSource[] and allows you access the pages of the imported document.

Example 3: Iterate the pages of a document

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

You can use the indexer of the Pages property to obtain a specific page of the document and split it. Then, you can save the separated page using PdfStreamWriter.

See Also

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