Using the Component

Installing XpdfImageExtract

Before using the XpdfImageExtract component, it must be registered on your system. Normally the installer will take care of that for you. If you need to register manually, you can run the command:
regsvr32 XpdfImageExtract.dll

Referencing XpdfImageExtract

To use the XpdfImageExtract component in a Visual Studio project, select the "References..." command on the "Projects" menu, go to the "COM" tab, and check the box next to XpdfImageExtract.

Instantiating an XpdfImageExtract Object

The code needed to instantiate an XpdfImageExtract object depends on your development environment. In VB6:
Dim pdf As XpdfImageExtract.XpdfImageExtract Set pdf = New XpdfImageExtract.XpdfImageExtract
In ASP VBScript:
Set pdf = Server.CreateObject("Xpdf.XpdfImageExtract")
In VB.net:
Dim pdf As XpdfImageExtract.XpdfImageExtract pdf = New XpdfImageExtract.XpdfImageExtract
In C#:
XpdfImageExtract.XpdfImageExtract pdf; pdf = new XpdfImageExtract.XpdfImageExtract();
In Delphi:
var pdf: IXpdfImageExtract; begin pdf := CoXpdfImageExtract_.Create;

Working with XpdfImageExtract

Once you've instantiated an XpdfImageExtract object, you can load PDF files and retrieve metadata. Typical code looks like this:
Dim mask As Long, colorSpace As Long, w As Long, h As Long pdf.loadFile "c:/test/file.pdf" ' extract images on page 1 pdf.getImages 1 n = pdf.getNumImages For i = 0 To n-1 pdf.getImageInfo i, mask, colorSpace, w, h .... Next i