Using this library you can use any Graphics2D API based SVG / graph / chart library to embed those graphics as vector drawing in a PDF. In combination with PDFBox PDFRenderer/PageDrawer you can also “rerender” PDF pages and change certain aspects. E.g. change the color mapping and perform an overfill. Now also it’s possible to setup masking of all draw()/fill() calls. Think of this like an additional clipping, just that this supports bitmap images and complete complex drawings (XForm’s) as alpha masks.