Acrobat.exe Process Doesn't Terminate When Closing Acrobat

Jun 1, 2012

I'm having a problem with closing Acrobat. I'm using vb.net to sign a PDF file in running Acrobat. After I'm done I close Acrobat and try to delete the currently signed PDF file, but I get an error message telling me that file is being used by another process. I tried closing and setting to Nothing AcroApp, AcroAVDoc, AcroPDDoc JSO, but still that doesn't work. I tried releasing them with Marshal.ReleaseComObject(...) still no effect.[code]

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I'm writing an app that prints of batches of documents to clients for posting. The printer uses OMR to collate and fold the documents into envelopes automatically.The document inputs will either be Word or Adobe Acrobat. I have routines to print off each document type while adding OMR on the fly.

The issue I have is that when the routine for PDF is run, the Adobe file is not closing properly. So when the next clients batch is being printed, there is an error saying that the document is locked by another user or process.I'm using the Acrobat 7 reference library and have Acrobat 7 installed on my machine (full blown product, not reader,) I'm closing the PDDocument, the AVDocument and the application in the code and I've even wrote a routine to kill the process to no avail.

[Code]...

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I have emptied out temporary internet files as suggested in some posts I saw online. I also opened the PDF in Notepad++ and the %PDF tag is first, and the %%EOF tag is last, so there's certainly no corruption visible in the document source that I can see. Below is the (very standard) code we use to open PDFs into a separate browser instance on our site:

PDFFile = System.AppDomain.CurrentDomain.BaseDirectory & Request.QueryString("LetterPath") & Request.QueryString("Letter")
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[code].....

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[code]...

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When I do "navigate" to a PDF file, I do notice a short popup (and progress bar) before viewing the PDF in acrobat. It happens so quickly that I can't read it, but it looks like a download progress bar.

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[code]....

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Below is a snippet of the code that I am try to using:
Try
'Tries To Close Acrobat Application
acrobatApp.Exit()
System.Runtime.InteropServices.Marshal.ReleaseComObject(javaScriptObj)
[Code] .....

Although I am not sure if this could be a problem - I run a javascript saveAs script on the Acrobat side in order to make a copy of the file. This also could be a reason why it is hanging, but I ruled it out based on basic knowledge of saving files and exiting from other Acrobat/Microsoft Programs. Acrobat only closes when my application ends. (Currently) I am trying to make it consider the case if a user manually closes the Acrobat application.

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If i try the same with show code:

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Private Sub FormBackground_FormClosing(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles Me.FormClosing
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dim someActiveXcomponent = new X()
...
<formClosing>
someActiveXcomponent = nothing
GC.Collect()
GC.WaitForPendingFinalizers ' here it hangs

Probably a bug in that component, but the problem is that I don't have much of a choice, I'll have to use that component for now.

Calling
System.Runtime.InteropServices.Marshal.ReleaseComO bject( myObject )
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I was able to create the process and make start with Windows. I changed the property (CanStop) to False but that did not help because after a few tries the servise stops. I used a For-Next loop in the timer to check for the process to terminate but unfortunatly, it didn't work. The code I used is:

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[Code].....

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Code:
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oBooks = oExcel.Workbooks
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oSheet = oBook.Worksheets(1)
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Dec 19, 2010

I got exactly the same situation as the following link. I need to end the excel process after calling it in Visual Basic. But it did not and I have to use task manager to kill EXCEL process manually.

[URL]

I have been trying the same solution mentioned in the above link but not successful. Can any body to take the code below to let me know what I am doing wrong?

Code:

Please use the CODE tags when posting code. Click on this post's quote button to see how.

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Here are the events I've tried to register for so far:
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[Code] .....

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[code...]

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[code...]

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2. Item Details  Form

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[Code]....

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[code]...

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[code]....

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Dim frm As Form
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[Code]....

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[Code].....

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