protected void ManipulatePdf(String dest)
{
PdfDocument pdfDoc = new PdfDocument(new PdfWriter(dest));
ImageData image = ImageDataFactory.Create(IMAGE);
float width = image.GetWidth();
float height = image.GetHeight();
PageSize pageSize = new PageSize(width / 2, height / 2);
pdfDoc.SetDefaultPageSize(pageSize);
PdfCanvas canvas = new PdfCanvas(pdfDoc.AddNewPage());
canvas.AddImageWithTransformationMatrix(image, width, 0, 0, height, 0, -height / 2, false);
canvas = new PdfCanvas(pdfDoc.AddNewPage());
canvas.AddImageWithTransformationMatrix(image, width, 0, 0, height, 0, 0, false);
canvas = new PdfCanvas(pdfDoc.AddNewPage());
canvas.AddImageWithTransformationMatrix(image, width, 0, 0, height, -width / 2, -height / 2, false);
canvas = new PdfCanvas(pdfDoc.AddNewPage());
canvas.AddImageWithTransformationMatrix(image, width, 0, 0, height, -width / 2, 0, false);
pdfDoc.Close();
}
protected void ManipulatePdf(String dest)
{
PdfDocument pdfDoc = new PdfDocument(new PdfReader(SRC), new PdfWriter(dest));
Document doc = new Document(pdfDoc);
PdfFont font = PdfFontFactory.CreateFont(StandardFonts.HELVETICA);
Paragraph paragraph = new Paragraph("My watermark (text)")
.SetFont(font)
.SetFontSize(30);
ImageData img = ImageDataFactory.Create(IMG);
float w = img.GetWidth();
float h = img.GetHeight();
PdfExtGState gs1 = new PdfExtGState().SetFillOpacity(0.5f);
// Implement transformation matrix usage in order to scale image
for (int i = 1; i <= pdfDoc.GetNumberOfPages(); i++)
{
PdfPage pdfPage = pdfDoc.GetPage(i);
Rectangle pageSize = pdfPage.GetPageSizeWithRotation();
// When "true": in case the page has a rotation, then new content will be automatically rotated in the
// opposite direction. On the rotated page this would look as if new content ignores page rotation.
pdfPage.SetIgnorePageRotationForContent(true);
float x = (pageSize.GetLeft() + pageSize.GetRight()) / 2;
float y = (pageSize.GetTop() + pageSize.GetBottom()) / 2;
PdfCanvas over = new PdfCanvas(pdfDoc.GetPage(i));
over.SaveState();
over.SetExtGState(gs1);
if (i % 2 == 1)
{
doc.ShowTextAligned(paragraph, x, y, i, TextAlignment.CENTER, VerticalAlignment.TOP, 0);
}
else
{
over.AddImageWithTransformationMatrix(img, w, 0, 0, h, x - (w / 2), y - (h / 2), false);
}
over.RestoreState();
}
doc.Close();
}
protected void ManipulatePdf(String dest)
{
PdfDocument pdfDoc = new PdfDocument(new PdfReader(SRC), new PdfWriter(dest));
ImageData image = ImageDataFactory.Create(IMG);
// Translation defines the position of the image on the page and scale transformation sets image dimensions
// Please also note that image without scaling is drawn in 1x1 rectangle. And here we draw image on page using
// its original size in pixels.
AffineTransform affineTransform = AffineTransform.GetTranslateInstance(36, 300);
// Make sure that the image is visible by concatenating a scale transformation
affineTransform.Concatenate(AffineTransform.GetScaleInstance(image.GetWidth(), image.GetHeight()));
PdfCanvas canvas = new PdfCanvas(pdfDoc.GetFirstPage());
float[] matrix = new float[6];
affineTransform.GetMatrix(matrix);
canvas.AddImageWithTransformationMatrix(image, matrix[0], matrix[1], matrix[2], matrix[3], matrix[4], matrix[5]);
pdfDoc.Close();
}