PDF to TIFF using VB.NBET Error: UnsupportedValueError: Value is unsupported. === Parameter cConvID

Question

I'm trying to use the following VB function to transform a pdf
document to a tiff one:
I am using Visual Studio 2008, VB.Net
Using the following code, But when I type
'JSObj.SaveAs(fullPathTIF, "com.adobe.acrobat.tiff")'
Visual studio intelisence doesn't show the SaveAs method at all. I went ahead and typed it, but got the following error in that line
Error: UnsupportedValueError: Value is unsupported. ===> Parameter cConvID
I tried googling forvthat error, but could not find a solution. Please help.
I am trying to do a proof of concept to my client saying that Adobe acrobat could help them convert PDF to TIFF and Tiff to PDF and they are ready to buy the product if I prove that in the .Net environment.
CODE:
=====
http://forums.microsoft.com/msdn/showpost.aspx?postid=1665127&siteid=1&sb=0&d=1&at=7&ft=11 &tf=0&pageid=1
Private Sub savePDFtoTIF(ByVal fullPathPDF As String, ByVal
fullPathTIF As String)
Dim PDFApp As Acrobat.AcroApp
Dim PDDoc As Acrobat.CAcroPDDoc
Dim AVDoc As Acrobat.CAcroAVDoc
Dim JSObj As Object
' Create Acrobat Application object
PDFApp = CreateObject("AcroExch.App")
' Create Acrobat Document object
PDDoc = CreateObject("AcroExch.PDDoc")
' Open PDF file
PDDoc.Open(fullPathPDF)
' 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()
' Attempt to save PDF to TIF image file.
' SaveAs method syntax .SaveAs( strFilePath, cConvID )
' For TIFF output the correct cConvid is
' cCovid MUST BE ALL LOWERCASE.
JSObj.SaveAs(fullPathTIF, "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

Answer 1

Hi I tried with the lowercase 's' in saveAs(),
I am still getting the same error
'UnsupportedValueError: Value is unsupported. ===> Parameter cConvID.'
Wierd thing is I am not getting the 'saveAs()' method as an option for the JSObj at all I am just forcibily typing it. May be, do you guys think I am missing any reference. I have a project reference for the Acrobat 9 com component (Component Name: Acrobat Typelib version 1.0, C:\Program Files\Adobe\Acrobat 9.0\Acrobat\Acrobat.tlb
Please help.
My exact code is:
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("D:\Applications\Test_winapp\PDFUtility\WindowsApplication1\WindowsApplication 1\sample.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("D:/Applications/sample.tiff", "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