The attached pdf is the first page referred to in this link from Gunnar Brand.

https://www.mail-archive.com/users@pdfbox.apache.org/msg11980.html

When I render this page in pdfbox 2.0.24 I get a blank page using code
similar to below, which works for documents which are not using masks.


PDDocument document = PDDocument.load(fileAsByteArray)
PDFRenderer renderer = new PDFRenderer(document);

// configuring renderer for best image
RenderingHints hints = new RenderingHints(null);
hints.put(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_SPEED);
hints.put(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_OFF);
hints.put(RenderingHints.KEY_STROKE_CONTROL, RenderingHints.VALUE_STROKE_PURE);
renderer.setRenderingHints(hints);

// render relevant the pages into memory
BufferedImage bufferedImage = renderer.renderImage(0, 5, ImageType.BINARY);


I have tried with/without the hints and with different scales and image types.

Any ideas what's going wrong here?

Thanks.

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