Step 1: Download image viewer cp gold ActiveX setup disk and installed it.
Step 2: Create New Visual Basic Project, select Windows Application.
Step 3: Add a buttons into the form.
Step 4: Add following code in buttons click event. You need change the
correct path of your image file with FileName property.
This sample code convert tif file to PDF/A file.
AxImageViewer1.FileName = "c:\yourimage.tif"
AxImageViewer1.PDFOutputPDFA=True
AxImageViewer1.Save "c:\newfile",
"pdf"
End Sub