Confluence 3.0 includes a new PDF export subsystem that fixes this problem.

Hi all

I also got the same problem and i enquired about the same and found that there might be a problem of images, on normal pdfs images should be in RGB format but problem facers may have images in CMYK format. i got the solution by changing images from CMYK to RGB format.

Thanks
Janny

Could not replicate with:

• JRocket JVM under Standalone or Tomcat
• JIMI library removed

May need to replicate as completely as possible. Possible ideas

• Ask Contegix to setup a new Conf standalone in their env
• Setup same everything locally, eg Resin, PostgreSQL, JRocket.

Dave Soul

Example problem PNG attached

This issue appears only to occur on instances with JIMI library, so apparently is related to either JIMI library bug in PNG support, or lack of support for certain PNGs. Error has been encountered on CAC, which uses JIMI library but not JAI. Further testing is needed.

If encountered, the current workaround is to install the JAI from http://java.sun.com/products/java-media/jai/

David Soul

2.2.8 is generating corrupt PDF exports for pages containing PNG images. No log errors are thrown by Confluence but the PDF file generates error 109 when opened in Acrobat Reader. An example PDF and problem PNG is attached (71 DPI with 32 bit colour). This error is blocking the CAC User Guide PDF.

Since it only seems to fail with specific png files, it is not really a dependency. However, we will add it to our documentation to make customers aware of the fact that the JAI library might be required.

Thanks for letting us know.

Cheers,
Jens

Installing JAI helped. I had to restart Confluence, though.

It is worth to mention dependency on JAI in Confluence documentation, since FOP information message is confusing. Version 0.20.5 does have JAI support, according to their website.

Andrew: this will be available on our main site tomorrow LA time

Thanks for the excerpt of your logs.

Some of our users have found that finding the file confluence/WEB-INF/lib/JimiProClasses.zip, renaming it to JimiProClasses.jar and then restarting Confluence actually makes the export work successfully.

However I'm quite sure JimiProClasses.zip was renamed to .jar in 1.4.1 and therefore this shouldn't be the problem. Please check it anyway whether there is a zip file or a jar.

I couldn't find any bug report regarding PNG images with a specific resolution, but the problem might well be related to Jimi since it seems to have problems loading the image. Alternatively you could install JAI [1] to see if this specific PNG format is supported by the Java Advanced Imaging API.

Hope that helps,

Cheers,
Jens

[1] Java Advanced Imaging API (http://java.sun.com/products/java-media/jai/forDevelopers/jaifaq.html)

This is an excerpt from catalina.out:

[INFO] JAI support was not installed (read: not present at build time). Trying to use Jimi instead
[ERROR] Error in XObject : Error while loading image file://var/lib/confluence/temp/export_07292005_175825/mat_create.png : class ja
va.lang.Exception - Image error
[INFO] Parsing of document complete, stopping renderer