Compressing and packing existing PDF documents

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Compressing PDF documents using GdPicture.NET is done in two steps:

You need to enable compression.
You need to save the PDF document with enabled packing option.

VB.NET
C#

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'We assume that GdPicture has been correctly installed and unlocked. Dim oGdPicturePDF As New GdPicturePDF() Dim status As GdPictureStatus 'Loading your PDF document into the GdPicturePDF object. status = oGdPicturePDF.LoadFromFile("input.pdf", False) If status = GdPictureStatus.OK Then 'Enabling compression. oGdPicturePDF.EnableCompression(True) 'Saving the compressed PDF document without packing. status = oGdPicturePDF.SaveToFile("compressed.pdf", False) If status <> GdPictureStatus.OK Then MessageBox.Show("Error occurred when saving the compressed PDF document without packing: " + oGdPicturePDF.GetStat().ToString(), "Compress and Pack Example", MessageBoxButtons.OK, MessageBoxIcon.Error) End If 'Saving the compressed PDF document with packing. status = oGdPicturePDF.SaveToFile("compressed_pack.pdf", True) If status <> GdPictureStatus.OK Then MessageBox.Show("Error occurred when saving the compressed PDF document with packing: " + oGdPicturePDF.GetStat().ToString(), "Compress and Pack Example", MessageBoxButtons.OK, MessageBoxIcon.Error) End If 'Disabling compression. oGdPicturePDF.EnableCompression(False) 'Saving the uncompressed PDF document without packing (the largest size). status = oGdPicturePDF.SaveToFile("uncompressed.pdf", False) If status <> GdPictureStatus.OK Then MessageBox.Show("Error occurred when saving the uncompressed PDF document without packing: " + oGdPicturePDF.GetStat().ToString(), "Compress and Pack Example", MessageBoxButtons.OK, MessageBoxIcon.Error) End If 'Saving the uncompressed PDF document with packing. status = oGdPicturePDF.SaveToFile("uncompressed_pack.pdf", True) If status <> GdPictureStatus.OK Then MessageBox.Show("Error occurred when saving the uncompressed PDF document with packing: " + oGdPicturePDF.GetStat().ToString(), "Compress and Pack Example", MessageBoxButtons.OK, MessageBoxIcon.Error) End If 'Closing the document. oGdPicturePDF.CloseDocument() Else MessageBox.Show("The document can't be loaded. Status: " + oGdPicturePDF.GetStat().ToString(), "Compress and Pack Example", MessageBoxButtons.OK, MessageBoxIcon.Information) End If oGdPicturePDF.Dispose()

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'We assume that GdPicture has been correctly installed and unlocked.
Dim oGdPicturePDF As New GdPicturePDF()
Dim status As GdPictureStatus
'Loading your PDF document into the GdPicturePDF object.
status = oGdPicturePDF.LoadFromFile("input.pdf", False)
If status = GdPictureStatus.OK Then
    'Enabling compression.
    oGdPicturePDF.EnableCompression(True)
    'Saving the compressed PDF document without packing.
    status = oGdPicturePDF.SaveToFile("compressed.pdf", False)
    If status <> GdPictureStatus.OK Then
        MessageBox.Show("Error occurred when saving the compressed PDF document without packing: " + oGdPicturePDF.GetStat().ToString(), "Compress and Pack Example", MessageBoxButtons.OK, MessageBoxIcon.Error)
    End If
    'Saving the compressed PDF document with packing.
    status = oGdPicturePDF.SaveToFile("compressed_pack.pdf", True)
    If status <> GdPictureStatus.OK Then
        MessageBox.Show("Error occurred when saving the compressed PDF document with packing: " + oGdPicturePDF.GetStat().ToString(), "Compress and Pack Example", MessageBoxButtons.OK, MessageBoxIcon.Error)
    End If
    'Disabling compression.
    oGdPicturePDF.EnableCompression(False)
    'Saving the uncompressed PDF document without packing (the largest size).
    status = oGdPicturePDF.SaveToFile("uncompressed.pdf", False)
    If status <> GdPictureStatus.OK Then
        MessageBox.Show("Error occurred when saving the uncompressed PDF document without packing: " + oGdPicturePDF.GetStat().ToString(), "Compress and Pack Example", MessageBoxButtons.OK, MessageBoxIcon.Error)
    End If
    'Saving the uncompressed PDF document with packing.
    status = oGdPicturePDF.SaveToFile("uncompressed_pack.pdf", True)
    If status <> GdPictureStatus.OK Then
        MessageBox.Show("Error occurred when saving the uncompressed PDF document with packing: " + oGdPicturePDF.GetStat().ToString(), "Compress and Pack Example", MessageBoxButtons.OK, MessageBoxIcon.Error)
    End If
    'Closing the document.
    oGdPicturePDF.CloseDocument()
Else
    MessageBox.Show("The document can't be loaded. Status: " + oGdPicturePDF.GetStat().ToString(), "Compress and Pack Example", MessageBoxButtons.OK, MessageBoxIcon.Information)
End If
oGdPicturePDF.Dispose()

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//We assume that GdPicture has been correctly installed and unlocked. GdPicturePDF oGdPicturePDF = new GdPicturePDF(); GdPictureStatus status = default(GdPictureStatus); //Loading your PDF document into the GdPicturePDF object. status = oGdPicturePDF.LoadFromFile("input.pdf", false); if (status == GdPictureStatus.OK) { //Enabling compression. oGdPicturePDF.EnableCompression(true); //Saving the compressed PDF document without packing. status = oGdPicturePDF.SaveToFile("compressed.pdf", false); if (status != GdPictureStatus.OK) { MessageBox.Show("Error occurred when saving the compressed PDF document without packing: " + oGdPicturePDF.GetStat().ToString(), "Compress and Pack Example", MessageBoxButtons.OK, MessageBoxIcon.Error); } //Saving the compressed PDF document with packing. status = oGdPicturePDF.SaveToFile("compressed_pack.pdf", true); if (status != GdPictureStatus.OK) { MessageBox.Show("Error occurred when saving the compressed PDF document with packing: " + oGdPicturePDF.GetStat().ToString(), "Compress and Pack Example", MessageBoxButtons.OK, MessageBoxIcon.Error); } //Disabling compression. oGdPicturePDF.EnableCompression(false); //Saving the uncompressed PDF document without packing (the largest size). status = oGdPicturePDF.SaveToFile("uncompressed.pdf", false); if (status != GdPictureStatus.OK) { MessageBox.Show("Error occurred when saving the uncompressed PDF document without packing: " + oGdPicturePDF.GetStat().ToString(), "Compress and Pack Example", MessageBoxButtons.OK, MessageBoxIcon.Error); } //Saving the uncompressed PDF document with packing. status = oGdPicturePDF.SaveToFile("uncompressed_pack.pdf", true); if (status != GdPictureStatus.OK) { MessageBox.Show("Error occurred when saving the uncompressed PDF document with packing: " + oGdPicturePDF.GetStat().ToString(), "Compress and Pack Example", MessageBoxButtons.OK, MessageBoxIcon.Error); } //Closing the document. oGdPicturePDF.CloseDocument(); } else { MessageBox.Show("The document can't be loaded. Status: " + oGdPicturePDF.GetStat().ToString(), "Compress and Pack Example", MessageBoxButtons.OK, MessageBoxIcon.Error); } oGdPicturePDF.Dispose();

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//We assume that GdPicture has been correctly installed and unlocked.
GdPicturePDF oGdPicturePDF = new GdPicturePDF();
GdPictureStatus status = default(GdPictureStatus);
//Loading your PDF document into the GdPicturePDF object.
status = oGdPicturePDF.LoadFromFile("input.pdf", false);
if (status == GdPictureStatus.OK)
{
    //Enabling compression.
    oGdPicturePDF.EnableCompression(true);
    //Saving the compressed PDF document without packing.
    status = oGdPicturePDF.SaveToFile("compressed.pdf", false);
    if (status != GdPictureStatus.OK)
    {
        MessageBox.Show("Error occurred when saving the compressed PDF document without packing: " + oGdPicturePDF.GetStat().ToString(), "Compress and Pack Example", MessageBoxButtons.OK, MessageBoxIcon.Error);
    }
    //Saving the compressed PDF document with packing.
    status = oGdPicturePDF.SaveToFile("compressed_pack.pdf", true);
    if (status != GdPictureStatus.OK)
    {
        MessageBox.Show("Error occurred when saving the compressed PDF document with packing: " + oGdPicturePDF.GetStat().ToString(), "Compress and Pack Example", MessageBoxButtons.OK, MessageBoxIcon.Error);
    }
    //Disabling compression.
    oGdPicturePDF.EnableCompression(false);
    //Saving the uncompressed PDF document without packing (the largest size).
    status = oGdPicturePDF.SaveToFile("uncompressed.pdf", false);
    if (status != GdPictureStatus.OK)
    {
        MessageBox.Show("Error occurred when saving the uncompressed PDF document without packing: " + oGdPicturePDF.GetStat().ToString(), "Compress and Pack Example", MessageBoxButtons.OK, MessageBoxIcon.Error);
    }
    //Saving the uncompressed PDF document with packing.
    status = oGdPicturePDF.SaveToFile("uncompressed_pack.pdf", true);
    if (status != GdPictureStatus.OK)
    {
        MessageBox.Show("Error occurred when saving the uncompressed PDF document with packing: " + oGdPicturePDF.GetStat().ToString(), "Compress and Pack Example", MessageBoxButtons.OK, MessageBoxIcon.Error);
    }
    //Closing the document.
    oGdPicturePDF.CloseDocument();
}
else
{
    MessageBox.Show("The document can't be loaded. Status: " + oGdPicturePDF.GetStat().ToString(), "Compress and Pack Example", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
oGdPicturePDF.Dispose();

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