How to use

scaleAbsolute

method

in

com.itextpdf.text.Image

/**
 * Scale the image to the dimensions of the rectangle
 *
 * @param rectangle dimensions to scale the Image
 */
public void scaleAbsolute(final Rectangle rectangle) {
  scaleAbsolute(rectangle.getWidth(), rectangle.getHeight());
}

/**
 * Scale the image to the dimensions of the rectangle
 *
 * @param rectangle dimensions to scale the Image
 */
public void scaleAbsolute(final Rectangle rectangle) {
  scaleAbsolute(rectangle.getWidth(), rectangle.getHeight());
}

public void scale(int width, int height) {
  if (width > 0 || height > 0) {
    int currentWith = getWidth();
    int currentHeight = getHeight();
    int targetWidth = width;
    int targetHeight = height;
    if (targetWidth == -1) {
      targetWidth = (int)(currentWith * ((double)targetHeight / currentHeight));
    }
    if (targetHeight == -1) {
      targetHeight = (int)(currentHeight * ((double)targetWidth / currentWith));
    }
    if (currentWith != targetWidth || currentHeight != targetHeight) {
      _image.scaleAbsolute(targetWidth, targetHeight);
    }
  }
}

private void scaleToOutputResolution(Image image) {
  float factor = _sharedContext.getDotsPerPixel();
  if (factor != 1.0f) {
    image.scaleAbsolute(image.getPlainWidth() * factor, image.getPlainHeight() * factor);
  }
}

private void scaleToOutputResolution(Image image) {
  float factor = getSharedContext().getDotsPerPixel();
  image.scaleAbsolute(image.getPlainWidth() * factor, image.getPlainHeight() * factor);
}

float heightInPoints = HtmlUtilities.parseLength(height, actualFontSize);
if (widthInPoints > 0 && heightInPoints > 0) {
  img.scaleAbsolute(widthInPoints, heightInPoints);
} else if (widthInPoints > 0) {
  heightInPoints = img.getHeight() * widthInPoints
      / img.getWidth();
  img.scaleAbsolute(widthInPoints, heightInPoints);
} else if (heightInPoints > 0) {
  widthInPoints = img.getWidth() * heightInPoints
      / img.getHeight();
  img.scaleAbsolute(widthInPoints, heightInPoints);

float heightInPoints = HtmlUtilities.parseLength(height, actualFontSize);
if (widthInPoints > 0 && heightInPoints > 0) {
  img.scaleAbsolute(widthInPoints, heightInPoints);
} else if (widthInPoints > 0) {
  heightInPoints = img.getHeight() * widthInPoints
      / img.getWidth();
  img.scaleAbsolute(widthInPoints, heightInPoints);
} else if (heightInPoints > 0) {
  widthInPoints = img.getWidth() * heightInPoints
      / img.getHeight();
  img.scaleAbsolute(widthInPoints, heightInPoints);

  image.scaleToFit(pageWidth, pageHeight);
else
  image.scaleAbsolute(pageWidth, pageHeight);

public static void adjustOrScaleToFit(Image img, Dimension dim, Rectangle box) {
  if (dim == null) {
    scaleToFit(img, box);
    return;
  }
  float width = img.getWidth();
  switch (dim.unit()) {
    case Percent:
      width = box.getWidth() * dim.amount() / 100f;
      break;
    case Px:
      width = dim.amount();
      break;
  }
  // W --> w
  // H --> h  •••> h = w * H / W
  float height = width * img.getHeight() / img.getWidth();
  img.scaleAbsolute(width, height);
}

  backgroundImage.scaleToFit(background);
} else {
  backgroundImage.scaleAbsolute(backgroundImageWidth, backgroundImageHeight);

  backgroundImage.scaleToFit(background);
} else {
  backgroundImage.scaleAbsolute(backgroundImageWidth, backgroundImageHeight);

image.setBorder(Image.BOX);
image.setBorderWidth(1f);
image.scaleAbsolute(119, 158);
writer.getDirectContent().addImage(image);

cb.clip();
cb.newPath();
bmp.scaleAbsolute(destWidth * bmp.getWidth() / srcWidth, -destHeight * bmp.getHeight() / srcHeight);
bmp.setAbsolutePosition(xDest - destWidth * xSrc / srcWidth, yDest + destHeight * ySrc / srcHeight - bmp.getScaledHeight());
cb.addImage(bmp);

cb.clip();
cb.newPath();
bmp.scaleAbsolute(destWidth * bmp.getWidth() / srcWidth, -destHeight * bmp.getHeight() / srcHeight);
bmp.setAbsolutePosition(xDest - destWidth * xSrc / srcWidth, yDest + destHeight * ySrc / srcHeight - bmp.getScaledHeight());
cb.addImage(bmp);