Printing PDF document using pd_PrintPage in C#

I am trying to use the following code to print a PDF document from a C# application. It works for a JPEG file but not for a PDF file. I get a message saying, "Not a valid Parameter" while trying to use PDF. I am using Bitmap in ev.Graphics.DrawImage. Can any one help me please? Thank you.


private void pd_PrintPage(object sender, PrintPageEventArgs ev)
        {
            Rectangle rect = new Rectangle(10,10, 500, 500);
           // Rectangle rectText = new Rectangle(40, 40, 300, 100);
           // StringFormat sf = new StringFormat();
          //  Bitmap b = new Bitmap("C:\\Program Files\\FSH Communications\\RoutePrt\\tmp\\rp2007112910331855.pdf");
            Bitmap b = new Bitmap("C:\\Program Files\\FSH Communications\\RoutePrt\\tmp\\test3.jpg");
            ev.Graphics.DrawImage(b, rect);
          //  ev.Graphics.DrawString("TEXT", new Font("Impact", 20), new SolidBrush(Color.Red), rectText, sf);
        }

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sstukwilaAsked:
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InteractiveMindConnect With a Mentor Commented:
You would need to use an external library to convert the PDF's to TIFF's.
Unfortunately, most of them cost money.

Your best (free) option would really be to go with one of the open source libraries (PDFSharp seems like a good choice), and print directly from that.

Let me know how you get on with PDFSharp.
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InteractiveMindCommented:
The Bitmap class does not support the PDF format; so you cannot load it the way you've attempted to.

Two possible options for you, are:

  - Convert your PDF's into TIFF format (as Bitmap supports TIFF); or

  - Download a PDF library
    (here's a list: http://csharp-source.net/open-source/pdf-libraries).
     These libraries allow you to draw to the PDF's (if you wish to), and
     can send the PDF's straight to the printer.
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sstukwilaAuthor Commented:
Hi Mr. InteractiveMind,

Thanks a lot for your guidance. I am not seeing any direct way of converting PDF's to TIFF's inside C#. These PDF files are created inside C#. Can you please let me know if there is a way of doing this inside C#?

Reg Open Source PDF library, I have never used an open source before. So, I am not sure how it works. PDFSharp says that it allows sending output to a printer. In my case, I have the PDF's created already. I just need to find a way to print them out at runtime. I will give a try by downloading the PDFSharp files.

Thanks a lot.
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sstukwilaAuthor Commented:
Hi Mr. Interactive Mind,

PDFSharp worked. I had to work on it for may be 1 hour to get it work. It is a big relief for me. Thanks a lot for your help. I wanted to check with you to see if it is safe and secure to use open source code like this? Can you please let me know your thoughts on this? Thank you.
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sstukwilaAuthor Commented:
Thank you
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InteractiveMindCommented:
Glad to hear it's working.

In many cases, especially for these popular open source projects, the code is often "safer" and more "secure" than typical industry-standard code - because the software has been tested and used by hundreds, or even thousands, of developers. So, especially for the later versions, practically all bugs have been ironed out.

Best of luck.
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