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Creating a AcroAVDoc give me an error message

Sep 6, 2012 2:02 PM

Tags: #acrobat #api #.net #c# #acrobat_reader

I am trying to read the the content from a pdf file programmatically with C#, by adding reference to Acrobat.dll in the project and use APIs 

 

This is the code which give me an error message "There was an error opening this document. This file cannot be found."

 

public String getText()

{

            AcroAVDoc pdfDoc = new AcroAVDoc();

            if (pdfDoc.Open(FileName, ""))

            {

                 AcroPDPage page;

                 AcroPDDoc pdf = (AcroPDDoc)pdfDoc.GetPDDoc();

                 int pages = pdf.GetNumPages();

              ......

}

 

My project file was successfully build. Through debugging, I found the error message was shown just running the above line of code in red.

I also tested that opening PDF file in windows file browser, it works fine.

 

Does anybody have the same problem before?

981 Views   9 Replies   Latest reply: lrosenth, Sep 7, 2012 4:46 AM
 
Replies
  • Test Screen Name
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    1. Test Screen Name,
    Sep 6, 2012 2:23 PM   in reply to jinny201209
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    I've seen this in C# where people have overlooked the rules for using \ in a string and just written something like FileName="C:\Dir\Thing.pdf"

     
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  • jinny201209
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    2. jinny201209,
    Sep 6, 2012 2:33 PM   in reply to Test Screen Name
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    I still don't quite understand.

     

    The error message happened when running the new interface code, which is:

    AcroAVDoc pdfDoc = new AcroAVDoc();


    It hasn't even get the field of filename, it shouldn't complain about the path issue.


     
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  • Test Screen Name
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    3. Test Screen Name,
    Sep 6, 2012 2:38 PM   in reply to jinny201209
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    Oh, ok.

    1. Be sure you don't just have Adobe Reader installed. You need a full copy of Acrobat.

    2. Sometimes it seems necessary to create an AcroExch.App object first.

    3. I have found debuggers can be misleading. Did you try adding a message after the new AcroAVDoc to see if it actually passed that line?

     
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  • lrosenth
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    4. lrosenth,
    Sep 6, 2012 2:42 PM   in reply to Test Screen Name
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    Make sure you have a copy of the SDK and associated documentation and have read it and looked at the samples.

     
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  • jinny201209
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    5. jinny201209,
    Sep 6, 2012 2:58 PM   in reply to Test Screen Name
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    Thanks!

     

    I don't quite understand "full copy of Acrobat", I have Adobe Acrobat 9 Standard, Adobe Reader 9.3.4 installed, Does it mean that I have "full copy of Acrobat"?

     

    I added a message after the new AcroAVDoc, it didn't passed that line.

     

    I would try to create an AcroExch.App object first, and see what happen

     
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  • Test Screen Name
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    6. Test Screen Name,
    Sep 6, 2012 3:04 PM   in reply to jinny201209
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    Just to clarify the meaning of the comma in " I have Adobe Acrobat 9 Standard, Adobe Reader 9.3.4 installed". Do you mean that you have both of these products installed, the purchased Acrobat and the free Adobe Reader?

     

    This can cause problems; try starting Acrobat first to make sure Reader doesn't get involved.

     
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  • jinny201209
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    7. jinny201209,
    Sep 6, 2012 3:20 PM   in reply to Test Screen Name
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    Yes, I have both the purchased Acrobat and the free Adobe Reader installed on my computer.

     

    You are right. I just noticed I have a pdf file opened with Adobe Reader. I think the project just look the current activate Adove reader and get an error.

     

    After I closed the Adobe Reader, it run successfully.

     

    Thanks !

     

    Could you tell me how to open Adobe Acrobat interface without Reader involved even I have a activate Reader?

     
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  • Test Screen Name
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    8. Test Screen Name,
    Sep 6, 2012 3:22 PM   in reply to jinny201209
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    It's a tricky one unless you take a brute force approach. Just start Acrobat at the start of the code - it will only start once. However, that won't close Reader.  I think in 10.0 they are independent, in 9.0 only one can run.

     
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  • lrosenth
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    9. lrosenth,
    Sep 7, 2012 4:46 AM   in reply to Test Screen Name
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    Yes, as of Acrobat/Reader X, you can explicitly target one or the other – the conflict no longer happens.

     

    So upgrade ☺.

     
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