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  1. PDFBox
  2. PDFBOX-4516

PDFBox text and images are blurry even after rendering with high DPI

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 2.0.15, 2.0.19
    • Fix Version/s: 2.0.20, 3.0.0 PDFBox
    • Component/s: Rendering
    • Environment:
      Oracle Java 8 update125 on both Mac OS X and centos

      Description

      I tried to render image with different DPI, found PDFBOX performs poorly on the input pdf file, I have to put a very high DPI to get a reasonable good image. Could anyone pls help take a look?  Thanks

        Attachments

        1. Screenshot-PDFBOX-1359.pdf-page17.png
          402 kB
          Tilman Hausherr
        2. PDFBOX-4815-dithered-stencil-better-72dpi.jpg
          1.34 MB
          Tilman Hausherr
        3. PDFBOX-4815-dithered-stencil-better-36dpi.jpg
          66 kB
          Tilman Hausherr
        4. PDFBOX-4815-dithered-stencil-bad-72dpi.jpg
          4.87 MB
          Tilman Hausherr
        5. PDFBOX-4815-dithered-stencil-bad-36dpi.jpg
          147 kB
          Tilman Hausherr
        6. PDFBOX-4815-dithered-stencil.pdf
          3.20 MB
          Tilman Hausherr
        7. PDFBOX-4516-output-improved.png
          22 kB
          Tilman Hausherr
        8. PDFBOX-4516-output-default.png
          10 kB
          Tilman Hausherr
        9. PDFBOX-4516-better-72dpi.jpg
          269 kB
          Tilman Hausherr
        10. PDFBOX-4516-59.png
          512 kB
          Tilman Hausherr
        11. PDFBox4516.java
          3 kB
          Tilman Hausherr
        12. PDFBOX-4516_TvT-better-72dpi.jpg
          55 kB
          Tilman Hausherr
        13. PDFBOX-4516_TvT.pdf
          38 kB
          Tilman Hausherr
        14. original.pdf
          273 kB
          Jack
        15. lowDPI.png
          19 kB
          Jack
        16. highDPI.png
          161 kB
          Jack
        17. defaultDPI.png
          58 kB
          Jack

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              • Assignee:
                tilman Tilman Hausherr
                Reporter:
                jiangyurong609 Jack
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                Dates

                • Created:
                  Updated:
                  Resolved: