How to set background image in PdfPCell in iText?

Tags: tablesbackgroundbackground imageimagesimage in celliText 7

I am currently using iText to generate PDF reports. I want to set a medium size image as a background in PdfPCell instead of using background color. Is this possible?

Posted on StackOverflow on Jun 11, 2014 by user1283475

There is no PdfPCell class in iText 7. You should use Cell instead. To set your own custom background you need to extend CellRenderer and override draw() method like this:

private class ImageBackgroundCellRenderer extends CellRenderer {
    protected Image img;
 
    public ImageBackgroundCellRenderer(Cell modelElement, Image img) {
        super(modelElement);
        this.img = img;
    }
 
    @Override
    public void draw(DrawContext drawContext) {
        img.scaleToFit(getOccupiedAreaBBox().getWidth(), getOccupiedAreaBBox().getHeight());
        drawContext.getCanvas().addXObject(img.getXObject(), getOccupiedAreaBBox());
        super.draw(drawContext);
    }
}

Then you should create an instance of this renderer and declare it to the cell that needs this background:

Image img = new Image(ImageDataFactory.create(imgSrc));
cell.setNextRenderer(new ImageBackgroundCellRenderer(cell, img));

Take a look at the ImageBackground example for the full code.

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