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Topic: Printing PDF from VB.NET
Conf: (P-PDF) Developers, Msg: 88291
From: ewgoforth
Date: 5/24/2003 08:34 AM


I found the VB example on the SDK and managed to port it to .NET pretty cleanly, I got rid of all of the COM stuff except for the References to my Interop.Acrobat.dll and AFORMAUTLib.dll.

In my .NET application, I can create and manipulate form objects in my .PDF files, but when I try to print them nothing comes out. Here's my code:

--- Begin Code Snippet ---
Private Sub WorkWithExistingTemplateButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles WorkWithExistingTemplateButton.Click


StatusBox.Text = "Opening PDF Document..."

' Open the sample PDF file
avDoc = CreateObject("AcroExch.AVDoc")
bOK = avDoc.Open("C:\test.pdf", "Forms Automation Demo")

'If everything was OK opening the PDF, we now instantiate the Forms
'Automation object.
If (bOK) Then
formApp = CreateObject("AFormAut.App")
acroForm = formApp.Fields
avDoc = Nothing
MsgBox("Failed to open PDF Document. Aborting...")
End If

'Update the status box
StatusBox.Text = "Populating Form Fields..."

field = acroForm.Item("accountnumber")

field.Value = "123456789"

field = acroForm.Item("businessname")

field.Value = "John Doe's Plumbing"

field = acroForm.Item("authsigner1")

field.Value = "John Doe"

avDoc.PrintPages(1, 1, 1, False, False)

Catch ex As Exception

End Try
End Sub
--- End Code Snippet ---

What's really strange is that, if I have my Windows XP "Printers and Faxes" tool open, I see my 1 page document document being "printed." When I walk over to the printer it isn't there. Test pages from the same PC to the same printer print just fine.

I couldn't really find much documentation on the various print methods: there's .PrintPages, .PrintPagesEx, .PrintPagesSilent, and .PrintPagesSilentEx. The "Ex" ones look a little more fancy than their corresponding ones. I assume that "Silent" means no user interaction.

I chose to print page 1 to page 1, PostScript level 1, and set BinaryOK and ShrinkToFit as False.


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