InsertCompositeWatermark Method

The InsertCompositeWatermark method inserts composite watermark (combination of both text and image watermark) to the PDF document.

Syntax

Parameters

CompositeWatermark

[in] Dispatch pointer of the Instance of CgtCompositeWatermarkTamplate. The Composite watermark instance is a list of text and image watermarks. Dispatch pointer of the Instance of CgtTextWatermarkTamplate with all the necessary properties of the text watermark set.

Exceptions Raised

If the PDFtoolkit does not support the font provided for text watermark, then EUnsupportedFontError exception is raised.        

Example Code

[VC++]

CY fontSize;

CgtTextWatermarkTemplate watermark, refWatermark;

CgtCompositeWatermarkTemplate comp;

CgtImageWatermarkTemplate img;

LPCSTR fname;

CBitmap Bmp;

unsigned long bmpHandle;

fname = "BitmapImage.bmp";

HANDLE hBmp = LoadImage(NULL, fname,IMAGE_BITMAP,0,0,LR_LOADFROMFILE);

Bmp.Attach(hBmp);

bmpHandle = (long)HBITMAP(Bmp);

img = m_PDF.GetImageWatermark();

img.SetName("Image Watermark");

img.SetImageByHandle( bmpHandle , itBitmap);

img.SetHorizPos(hpCenter);

img.SetVertPos(vpMiddle);

watermark = m_PDF.GetTextWatermark();

watermark.SetName("Text watermark");

watermark.SetText("Text watermark");

fontSize.int64 = 24 * 10000;

watermark.GetFont().SetSize(fontSize);

watermark.SetTextColor(RGB(255, 0, 0));

watermark.SetHorizPos(hpCenter);

watermark.SetOverlay(true);

comp = m_PDF.GetCompositeWatermark();

comp.AddTextWatermark(watermark.m_lpDispatch);

comp.AddImageWatermark(img.m_lpDispatch);

if (comp.GetWatermarkTypeAt(0) == wtTextWatermark)

{

       refWatermark = comp.GetTextWatermarkAt(0);

       refWatermark.SetText("Changed watermark Text");

}

m_PDF.LoadFromFile("Input.pdf");

m_PDF.InsertCompositeWatermark(comp.m_lpDispatch);

m_PDF.SaveToFile("Output.pdf");

[VB]

Dim txtWatermark As gtTextWatermarkTemplateX

Dim img As gtImageWatermarkTemplateX

Dim refWatermark As gtTextWatermarkTemplateX

Dim comp As gtCompositeWatermarkTemplateX

Set txtWatermark = gtPDFDocumentX1.GetTextWatermark

Set img = gtPDFDocumentX1.GetImageWatermark

Set comp = gtPDFDocumentX1.GetCompositeWatermark

img.Name = "Image Watermark"

img.SetImageByHandle Image1.Picture.Handle, itBitmap

img.Overlay = True

img.VertPos = vpTop

img.HorizPos = hpCenter

txtWatermark.Text = "Text watermark"

txtWatermark.HorizPos = hpCenter

txtWatermark.Overlay = True

txtWatermark.TextColor = RGB(255, 0, 0)

txtWatermark.Font.Size = 70

txtWatermark.Font.Bold = False

txtWatermark.Font.Italic = True

txtWatermark.Font.Underline = True

Call comp.AddTextWatermark(txtWatermark)

Call comp.AddImageWatermark(img)

Set refWatermark = comp.GetTextWatermarkAt(0)

refWatermark.Text = "Changed watermark text"

gtPDFDocumentX1.LoadFromFile ("Input.pdf")

Call gtPDFDocumentX1.InsertCompositeWatermark(comp)

gtPDFDocumentX1.SaveToFile ("Output.pdf")