How to convert PDF to TIFF through C#?

Question

Hi,

 

I am sending PDF as fax from my application.It works fine bt the only issue is, Adobe Acrobat's new instance gets opened automatically.The solutions I got is to fax TIFF files rather than PDF.

 

Can anyone do let meknow how to convert PDF to TIFF through C#?

 

Thanks,

Ravi Bhatt

Answer 1

Hi Ravi,

 

Currently I don't find a class in the .NET Framework to convert PDF to TIFF file.

However, you can use an external library PDF4NET to achieve your goal, which can handle very large files (30000+ pages in a PDF).

See this threa Convert to TIFF image for detail.

 

Another approach is checking this article including good samples and illustrations.

100% .NET component for rendering PDF documents

PDFRasterizer.NET is a component for rendering PDF documents and is written entirely in C#.

This article describes how to use the PDFRasterizer.NET component to:

1. Convert PDF documents to raster images such as BMP, GIF, PNG, TIFF etc.
2. Display PDF documents in your WinForms application (with and without an EMF)
3. Programmatically print PDF documents

Hope that helps!

Answer 2

NOTE:

The following code is for converting TIFF files to other image files. NOT for converting PDF to TIFF. Sorry.

 

 

Code Snippet

public static byte[] ConvertImage(byte[] fromImage, string mimeType)

  

{
    // Read the image from the byte variable into a bitmap variable
    MemoryStream fromImageStream = new MemoryStream();
    fromImageStream.Write(fromImage, 0, fromImage.Length);
    Image image = Image.FromStream( fromImageStream, true ) ;
    Bitmap bitmap = (Bitmap) image;
    // Instantiate the encoder
    EncoderParameters encoderParams = new EncoderParameters();
    encoderParams.Param[0] = new EncoderParameter( Encoder.Quality, 50L );
    ImageCodecInfo codecInfo = GetEncoderInfo( mimeType );
    MemoryStream newImage = new MemoryStream();
    // Convert the image to the new format
    bitmap.Save( newImage, codecInfo, encoderParams );
    // Read the new image into a byte variable
    byte[] data = newImage.ToArray();

    if (Logger.LogSwitch.LogInfo)
    {
     Logger.Write("ImageUtility", "EXITING ConvertImage method");
    }

    return data;

}

 

private static ImageCodecInfo GetEncoderInfo(String mimeType)
  {
   int j;
   ImageCodecInfo[] encoders;
   encoders = ImageCodecInfo.GetImageEncoders();
   for(j = 0; j < encoders.Length; ++j)
   {
    if(encoders[j].MimeType == mimeType)
     return encoders[j];
   }
   return null;
  }

 

 

Answer 3

i also have the same problem, when fax pdf file\

 

anyone can solve, can share with me

email:

hajor#msn.com

Answer 4

good

Answer 5

DId you find a solution if so can you send me some info

Answer 6

i didn't solove it ,

now I try Ghostscript

Answer 7

I tried using your code but received an error on the

 

Image image = Image.FromStream.....

 

"Parameter is not valid"

 

Only happens when I open a PDF.  I tried with .tif and it worked.

 

Any ideas

 

 

Answer 8

I am not sure. It may has something to do with how you read the PDF into the byte[]

Here is how I did it.  

 

Code Snippet

   byte[] data = null;

   FileStream fs = new FileStream(fileName, FileMode.Open, FileAccess.Read);
    BinaryReader br = new BinaryReader(fs);
    // Read the image into the byte variable
    data = br.ReadBytes((int)fs.Length);
    br.Close();
    fs.Close();

 

 Then I passed the "data" to the method in my previous post. It worked fine for me.

 

--------------------------------------------------------------------------------------------------------------------------------

www.dotnetideas.com

Answer 9

Try this free online service to convert PDF files to TIFF or up to 117 other file formats.  www.freepdfconvert.com To incorporate this service directly into your website or application, refer to http://www.freepdfconvert.com/service_integration.asp .  This service is free with limitations and for a nomonal membership fee you can unlock the limitations.

Answer 10

i also happen the same problem

 

 

Image image = Image.FromStream.....

 

"Parameter is not valid"

Answer 11

I seem to be getting the invalid parameter error as well. Is there other objects that need referencing?

 

Thanks

Answer 12

Hi,

 

I got it solved.I was wble to send text and .jpeg successfully.Only the problwem came when i needed to send the pdf.So i convertedt it to tiff and treid to send it as a fax.Yest i sent it sucessfully and problem with the pdf got solved. No adobe instance gets open now.Big Relief to me.

 

 I used ABCPdf's professional edition to convert pdf to tiff. And that worked for me.

 

Regards,

Ravi bhatt.

Answer 13

I'm getting this "Parameter is not valid" exception, as well.

It's not only PDF, using RTF files causes the same exception.

Actually, I cannot imagine that it's possible to instanciate an Image with the data of an arbitray file without any previous conversion.

But I'm still interested in any solution of this problem.

 

 

 

Answer 14

Hi, great work

can you say details?

 

thanks

Answer 15

Hi ,
      As I have the same problem? If you got solution for your problem,please let me know friend....

Answer 16

The following code works for converting PDF to TIFF.But for that you have to use the ABCpdf 6.0 .NET Professional

 

 

Doc theDoc = new Doc();

theDoc.Read(Server.MapPath("../Pdfreports/Procedure_Report_" + ReportId.ToString() + ".pdf"));

// set up the rendering parameters

theDoc.Rendering.ColorSpace = "Gray";

theDoc.Rendering.BitsPerChannel = 1;

theDoc.Rendering.DotsPerInchX = 200;

theDoc.Rendering.DotsPerInchY = 400;

// loop through the pages

int n = theDoc.PageCount;

for (int i = 1; i <= n; i++)

{

theDoc.PageNumber = i;

theDoc.Rect.String = theDoc.CropBox.String;

theDoc.Rendering.SaveAppend = (i != 1);

//theDoc.Rendering.SaveCompression = XRendering.Compression.G4;

theDoc.SetInfo(0, "ImageCompression", "4");

theDoc.Rendering.Save(Server.MapPath("../Pdfreports/Procedure_Report_" + ReportId.ToString() + "_" + i.ToString() + ".tiff"));

}

theDoc.Clear();

 

 

Regards,

Ravi Bhatt

Answer 17

What do I 'use' to get the Doc() library?

Answer 18

I don't see how this code can work.  We are all getting an error of "parameter is not valid"

after this line:  Image image = Image.FromStream( fromImageStream, true ) ;

 

Since the image coming in is from a PDF file how does it know how to format it correctly to the image object?

 

Are you leaving something out?

 

Frankly, I don't think it is even possible to convert a PDF to a TIFF without purchasing third party software of some sort but I would love to be corrected.

 

Davicito

Washington, DC

Answer 19

The PDF we are using is generated using ComponentOne. It may be much than regular PDF. That's probably why the code worked for me. Like I said, we were able to convert the PDF we generated to GIF format using above code. Then we can fax the GIF. I haven't tried the code with just any PDF file.

Answer 20

I also got the invalid parameter on the FromStream method. There must be something that he left out in the code example for everyone to get this same error.

 

 

 

 

Answer 21

I just tested this code with a bitmap file instead of  PDF , and works fine, if i try with PDF files, I got the same "Parameter not Valid" error, perhaps image class do not know to handle PDF data.

 

Does  anybody know how to use tihis sample with PDF ?

 

Regards,

 

Answer 22

I appologize for misleading everyone. The code I posted here was used to convert TIFF to other format of images. I made mistake by thinking it was used for converting PDF to TIFF. Sorry about that.

Answer 23

Hello All,

    After a week of reading through Adobe SDK documentation and looking through a lot of forums, I have successfully written a test application to convert PDF to .TIFF. Note: you must have the Adobe standard or Professional 7.0 or greater installed to make this work. I did it using the trial version of Adobe Pro 8.0. You will have to set a reference to the Acrobat COM object. Here is my coding in VB.NET:

 

 

Code Block

Public Class Form1

Dim PDFApp As Acrobat.AcroApp

Dim PDDoc As Acrobat.CAcroPDDoc

Dim AVDoc As Acrobat.CAcroAVDoc

 

Private Sub btnBrowsePath_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnBrowsePath.Click

Dim result As DialogResult

 

OpenFileDialog1.FileName = ""

OpenFileDialog1.AddExtension = True

OpenFileDialog1.DefaultExt = ".TIF"

OpenFileDialog1.Filter = "Adobe PDF Files (*.PDF) | *.PDF"

OpenFileDialog1.InitialDirectory = "DeskTop"

result = OpenFileDialog1.ShowDialog()

 

If (result = Windows.Forms.DialogResult.OK) Then

Me.txtPDFPath.Text = OpenFileDialog1.FileName

End If

 

End Sub

 

Private Sub btnLoadPDF_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLoadPDF.Click

' Dim javaString As String

Dim JSObj As Object, strPDFText As String

 

' Create Acrobat Application object

PDFApp = CreateObject("AcroExch.App")

' Create Acrobat Document object

PDDoc = CreateObject("AcroExch.PDDoc")

' Open PDF file

PDDoc.Open(Me.txtPDFPath.Text)

' Create AV doc from PDDoc object

AVDoc = PDDoc.OpenAVDoc("TempPDF")

' Hide Acrobat application so everything is done in silent mode

PDFApp.Hide()

' Create Javascript bridge object

JSObj = PDDoc.GetJSObject()

' Test making change to one of the text fields

' Syntax for GetField method GetField( strFieldName )

JSObj.GetField("Text2.0.0.0.0").value = "JESSICA"

' Test pulling data from a PDF text field and showing in a Windows Messagebox

strPDFText = JSObj.GetField("Text2.0.0.2.0").value

' Attempt to save PDF to TIF image file.

' SaveAs method syntax .SaveAs( strFilePath, cConvID )

' For TIFF output the correct cConvid is "com.adobe.acrobat.tiff"

' cCovid MUST BE ALL LOWERCASE.

JSObj.SaveAs("C:\TestTiffs\TestGood.tif", "com.adobe.acrobat.tiff")

PDDoc.Close()

PDFApp.CloseAllDocs()

 

' Clean up

System.Runtime.InteropServices.Marshal.ReleaseComObject(JSObj)

JSObj = Nothing

System.Runtime.InteropServices.Marshal.ReleaseComObject(PDFApp)

PDFApp = Nothing

System.Runtime.InteropServices.Marshal.ReleaseComObject(PDDoc)

PDDoc = Nothing

System.Runtime.InteropServices.Marshal.ReleaseComObject(AVDoc)

AVDoc = Nothing

 

End Sub

End Class

 

 

Answer 24

Hai

 

Great!  I too have a requirement the same way.  But my pdf does not have any js or objects included in pdf.  Its a simple clean pdf contains only text.

 

Hence, I get nothing at

' Create Javascript bridge object

JSObj = PDDoc.GetJSObject()

' Test making change to one of the text fields

' Syntax for GetField method GetField( strFieldName )

JSObj.GetField("Text2.0.0.0.0").value = "JESSICA"

and the code does not run after the above line.

 

Can you please help me out.  How to save a pdf as tiff, which does not produce any value by executing JSObj = PDDoc.GetJSObject().

 

 

Answer 25

Do you have the standard or Professional Acrobat installed not just the reader? Did you set a reference to Acrobat?

 

Answer 26

 

Let me thank you first for your interest and quick response!

 

Yes.  I have installed Acrobat 8.0.1 Professional trial version.

I have set references.

 

Your code runs fine for me.  But when the execution encounters the statement JSObj = PDDoc.GetJSObject(), GetJSObject returns nothing, and rest of the code gets messed up.  I guess with JSObj you are reading and assigning values to some controls available in the pdf.  But my PDF does not contain any.  Its just a simple PDF. 

Answer 27

Yes, the GetField("Text2.0.0.0.0").value = "JESSICA" references a text field already in my pdf file. You would need to add some text fields in your pdf and changed the getfield parameter to reference the name of your fields. If you take out all the code after the JSOBJ = PDDOC.GetJSObj() and immediately put the PDDoc.SaveAs it should work. The path of the SaveAs cannot be a root or system folder.

 

 

 

Answer 28

Thanks!

But PDDoc does not have SaveAs method.  By any chance if you come to know how to do this please post.

Answer 29

Sorry, I mistakenly said PDDoc.SaveAS when I mean JSObj.SaveAs

 

This code should work and I have seen a similar code sample on another site by someone else, so I am sure it works.

 

Code Block

Public Class Form1

Dim PDFApp As Acrobat.AcroApp

Dim PDDoc As Acrobat.CAcroPDDoc

Dim AVDoc As Acrobat.CAcroAVDoc

 

 

Private Sub btnLoadPDF_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLoadPDF.Click

' Dim javaString As String

Dim JSObj As Object, strPDFText As String

 

' Create Acrobat Application object

PDFApp = CreateObject("AcroExch.App")

' Create Acrobat Document object

PDDoc = CreateObject("AcroExch.PDDoc")

' Open PDF file

PDDoc.Open("C:\Test.pdf") ' Path of some PDF you want to open

 

' Hide Acrobat application so everything is done in silent mode

PDFApp.Hide()

 

' Create Javascript bridge object

JSObj = PDDoc.GetJSObject()

' Create Tiff file

JSObj.SaveAs("C:\TestTiffs\TestGood.tif", "com.adobe.acrobat.tiff")

 

PDDoc.Close()

PDFApp.CloseAllDocs()

 

' Clean up

System.Runtime.InteropServices.Marshal.ReleaseComObject(JSObj)

JSObj = Nothing

System.Runtime.InteropServices.Marshal.ReleaseComObject(PDFApp)

PDFApp = Nothing

System.Runtime.InteropServices.Marshal.ReleaseComObject(PDDoc)

PDDoc = Nothing

 

End Sub

 

End Class

 

 

 

Answer 30

Thanks you! 

 

You have done a great help!

 

Thank you once again!

Answer 31

Hi i am developer PdfCreator from gotdotnet.
Tiff to PDF with CCITT compression is not diffucult. In the market very tool successfully make to it. Such as PDF Technologies for .NET

This product very easy

  PDFDocument MyPDF = new PDFDocument("Tiff2Pdf.pdf");                                                                                            

            MyPDF.TiffToPDF("sample.tif");

            MyPDF.Save();


Also this product have a live demo.

Answer 32

Many thanks to New2bi.

   Is there a way I can save it as Multipage Tif images?

Thanks

---

=BlackSpider=

Answer 33

Hi,

I tried your code it works fine. If i have "test.PDF" file which contains 20 pages. i want to convert the test.PDF in to single "test.tif"

If i tried same file with ur approach it converted each page in single tiff.

Please help its bit urgent

Thanks in Advance
Selvaraj P 

 

Answer 34

hi,

Thanks for the code .This is what am looking for conversion of pdf to tif.
But i got the  error
"Cannot create ActiveX component."  on line

PDFApp = CreateObject("AcroExch.App")

AM using the Adobe reader 7.0.

Please guys clarify me.

Thanks
vijay

Answer 35

hi,

Now i had upgraded Acrobat reader to 8.0 and now workign fine. But when i try to transfer multi page pdf file to a single tiff file, it actually creates each page as a seperate tiff file.But i want all the pages as a whole sinlge tiff fiel only...Are we missing any property?


Regards
vijay