PDFProcessorHandle Object Description

This object represents an open PDF file. It enables a series of post-processing operations to be performed on a PDF file without closing and re-parsing it after each operation, thus optimizing efficiency when multiple operations are applied to a PDF at once. The output is not written out until all operations are complete and the handle is closed. PDFProcessorHandle works equally well with physical (on disk) files and in-memory streams.

For users who are familiar with the PDFProcessor object, PDFProcessorHandle offers much of the same functionality and its methods take very similar arguments. The key difference is that the individual processing functions in PDFProcessorHandle do not require an input or output filename, as it maintains an internal state which knows about your PDF.

Note that PDFProcessorHandle should never be instantiated directly. A PDFProcessorHandle instance should always be obtained from an instance of the PDFProcessor object by calling OpenFile or OpenMem.

Example Usage in VBScript

Set oProcessor = CreateObject("easyPDF.PDFProcessor.7")

Set oProcessorHandle = oProcessor.OpenFile("C:\input.pdf", "C:\output.pdf")

oProcessorHandle.AddHyperlink 0, _
                              0, _
                              50, _
                              80, _
                              370, _
                              100, _
                              "http://www.bcltechnologies.com/", _
                              PRC_BORDERSTYLE_DASHLINE_MEDIUM, _
                              RGB(255, 0, 0)

oProcessorHandle.AddStamp "C:\image.jpg", _
                          0, _
                          PRC_STAMP_HPOS_CENTER, _
                          PRC_STAMP_VPOS_CENTER, _
                          PRC_STAMP_ZORDER_TOP, _
                          0, _
                          0, _
                          0, _
                          100

oProcessorHandle.Close

Example Usage in VB.NET

Dim inMem() As Byte = File.ReadAllBytes("C:\input.pdf")

Dim oProcessor As PDFProcessor = Nothing
Dim oProcessorHandle As PDFProcessorHandle = Nothing

Try

   oProcessor = New PDFProcessor

      oProcessorHandle = oProcessor.OpenMem(inMem, Nothing)

   oProcessorHandle.AddHyperlink(0, _
                                 0, _
                                 50, _
                                 80, _
                                 370, _
                                 100, _
                                 "http://www.bcltechnologies.com", _
                                 prcAnnotBorderStyle.PRC_BORDERSTYLE_DASHLINE_MEDIUM, _
                                 0)

   oProcessorHandle.AddStamp("C:\image.jpg", _
                             0, _
                             prcStampHPosition.PRC_STAMP_HPOS_CENTER, _
                             prcStampVPosition.PRC_STAMP_VPOS_CENTER, _
                             prcStampZOrder.PRC_STAMP_ZORDER_TOP, _
                             0, _
                             0, _
                             0, _
                             100)

   Dim outMem() As Byte = oProcessorHandle.CloseMem()

   File.WriteAllBytes("C:\output.pdf", outMem)

Catch ex As System.Runtime.InteropServices.COMException

   MessageBox.Show(ex.Message)

Finally

   oProcessorHandle.Close()

End Try

Example Usage in C#

byte[] inMem = File.ReadAllBytes(@"C:\input.pdf");

PDFProcessor oProcessor = null;
PDFProcessorHandle oProcessorHandle = null;

try
{
   oProcessor = new PDFProcessor();

      oProcessorHandle = oProcessor.OpenMem(inMem, null);

   oProcessorHandle.AddHyperlink(0, 
                                 0, 
                                 50, 
                                 80, 
                                 370, 
                                 100, 
                                 "http://www.bcltechnologies.com", 
                                 prcAnnotBorderStyle.PRC_BORDERSTYLE_DASHLINE_MEDIUM, 
                                 0);

   oProcessorHandle.AddStamp(@"C:\image.jpg", 
                             0, 
                             prcStampHPosition.PRC_STAMP_HPOS_CENTER, 
                             prcStampVPosition.PRC_STAMP_VPOS_CENTER, 
                             prcStampZOrder.PRC_STAMP_ZORDER_TOP, 
                             0, 
                             0, 
                             0, 
                             100);

   byte[] outMem = (byte[])oProcessorHandle.CloseMem();

   File.WriteAllBytes(@"C:\output.pdf", outMem);
}
catch(System.Runtime.InteropServices.COMException ex)
{
   MessageBox.Show(ex.Message);
}
finally
{
   oProcessorHandle.Close();
}