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From Tilman Hausherr <THaush...@t-online.de>
Subject Re: Producing PNG of Ghent Workgroup test PDFs
Date Fri, 17 Nov 2017 16:07:57 GMT
Hi,
We can do many of them but not those that are very advanced (some 
transparencies, CMYK blending).
See https://www.youtube.com/watch?v=TiqDqd-1pwU why this is so tricky.
Tilman

Am 17.11.2017 um 15:09 schrieb Leon Jackson:
> Hi,
>
> I'm trying to produce PNGs of PDF pages in my application, and a
> requirement is that the solution can successfully handle the Ghent
> workgroup test PDFs. I'm using PDF Box 2.0.8 and it results are not looking
> good.
>
> I'm using the code below to generate the PNGs
>
>
>
>
>
>
>
>
>
> PDDocument pdDocument = PDDocument.load(new
> File("Ghent_PDF_Output_Suite_V50/Ghent_PDF-Output-Test-V50_ALL_X4.pdf"));
> PDFRenderer renderer = new PDFRenderer(pdDocument);
> BufferedImage image = renderer.renderImageWithDPI(0, 300, ImageType.RGB);
> if (!ImageIO.write(image, "PNG", new FileOutputStream("temp/test.png"))) {
>      throw new Exception("Failed to write image '" + image + "'");
> }
>
> Does anyone know if it's possible to get PdfBox to handle these PDFs
> properly?
>
> Thanks,
> Leon
>


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