Uploaded image for project: 'Openmeetings'
  1. Openmeetings
  2. OPENMEETINGS-484

Poor quality of bitmapped pictures in pdf files on the whiteboard.

    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major
    • Resolution: Not A Problem
    • Affects Version/s: 2.0.0 Apache Incubator Release
    • Fix Version/s: 3.0.0
    • Component/s: None
    • Labels:
      None
    • Environment:
      Server runs CentOS 6, apache-openmeetings-incubating-2.0.0.r1361497-14-07-2012_1108.tar.gz

      Description

      I make a pdf presentation with latex/beamer, include a png picture in it. Then I upload the pdf file produced by latex to the om whiteboard. The text part of the slide looks fine, but the image is very low resolution/unsharp. See attached screenshot.

      1. 9.png
        6 kB
        Mikael Kurula
      2. 99.png
        15 kB
        Mikael Kurula
      3. orig.png
        3 kB
        Mikael Kurula
      4. Screen shot 2012-12-10 at 16.33.19 (2).png
        136 kB
        Mikael Kurula

        Activity

        Hide
        solomax Maxim Solodovnik added a comment -

        can you please change "swftools_jpegquality" config parameter and retest?
        If I'm not mistaken it was created to improve quality of PDF images

        Show
        solomax Maxim Solodovnik added a comment - can you please change "swftools_jpegquality" config parameter and retest? If I'm not mistaken it was created to improve quality of PDF images
        Hide
        alcarola Mikael Kurula added a comment -

        Thanks for the hint! I tried this and I managed to screw up the quality totally by setting a low quality (9, see 9.png), but setting it higher didn't improve it (99.png). The screenshot orig.png is taken from the pdf openeded on my own computer.

        Show
        alcarola Mikael Kurula added a comment - Thanks for the hint! I tried this and I managed to screw up the quality totally by setting a low quality (9, see 9.png), but setting it higher didn't improve it (99.png). The screenshot orig.png is taken from the pdf openeded on my own computer.
        Hide
        solomax Maxim Solodovnik added a comment -

        Hello Mikael,

        could you please try to fix it by setting these 2 parameters:
        swftools_zoom
        swftools_jpegquality
        Possible values are described here: http://openmeetings.apache.org/GeneralConfiguration.html

        Show
        solomax Maxim Solodovnik added a comment - Hello Mikael, could you please try to fix it by setting these 2 parameters: swftools_zoom swftools_jpegquality Possible values are described here: http://openmeetings.apache.org/GeneralConfiguration.html
        Hide
        alcarola Mikael Kurula added a comment -

        Hi!

        Yes, indeed raising the swftools_zoom parameter value to 300 solved the problem! (The default values was somewhere smaller than 100 for me, I think. I tread raising the jpegquality parameter value already earlier without success.) Great, thanks for this!

        Mikael

        Show
        alcarola Mikael Kurula added a comment - Hi! Yes, indeed raising the swftools_zoom parameter value to 300 solved the problem! (The default values was somewhere smaller than 100 for me, I think. I tread raising the jpegquality parameter value already earlier without success.) Great, thanks for this! Mikael
        Hide
        solomax Maxim Solodovnik added a comment -

        resolved as configuration issue

        Show
        solomax Maxim Solodovnik added a comment - resolved as configuration issue

          People

          • Assignee:
            Unassigned
            Reporter:
            alcarola Mikael Kurula
          • Votes:
            1 Vote for this issue
            Watchers:
            3 Start watching this issue

            Dates

            • Created:
              Updated:
              Resolved:

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