Register additional Mimetype conversion?

As we transition to the new Hyland Community, some post links may be temporarily disrupted as we finalize redirects. We apologize for the inconvenience and are working to resolve this as quickly as possible. Details.

jsauer

Hi,
I just want to convert a tiff into a pdf file. This is possible with ImageMagick.

I added the application/pdf mime type to the web-client-config-custem.xml

    <image-transformers>
         <transformer name="application/pdf"/>
    </image-transformers>
‍‍‍‍‍

The option will be displayed but if I try to run the action I get no Transformer registered for transformation from image/tiff to application/pdf

Do I have to change the ImageMagickContentTransformerWorker class in order to achieve this or is there another way to do it.

I already tried with RuntimeExecutableContentTransformerWorker but the explicitTransformations section seems not to do the job as I get the same resullt: no transformer for tiff to pdf 😞

As tiff and pdf mimetypes are already registered the sections in wiki http://wiki.alfresco.com/wiki/Simple_Customisations#Transformation_Mimetype and http://wiki.alfresco.com/wiki/Content_Transformations do not apply, do they?

Any ideas?
Jörg

zaizi

The code snippet from AbstractImageMagickContentTransformerWorker. You'll have to override these methods to do tiff to pdf.

    /**
     * Some image formats are not supported by ImageMagick, or at least appear not to work.
     * 
     * @param mimetype the mimetype to check
     * @return Returns true if ImageMagic can handle the given image format
     */
    public static boolean isSupported(String mimetype)
    {
        if (!mimetype.startsWith(MIMETYPE_IMAGE_PREFIX))
        {
            return false;   // not an image
        }
        else if (mimetype.equals(MimetypeMap.MIMETYPE_IMAGE_RGB))
        {
            return false;   // rgb extension doesn't work
        }
        else if (mimetype.equals(MimetypeMap.MIMETYPE_IMAGE_SVG))
        {
            return false;   // svg extension doesn't work
        }
        else
        {
            return true;
        }
    }
    
    /**
     * Supports image to image conversion, but only if the JMagick library and required
     * libraries are available.
     */
    public boolean isTransformable(String sourceMimetype, String targetMimetype, TransformationOptions options)
    {
        if (!available)
        {
            return false;
        }
        if (!AbstractImageMagickContentTransformerWorker.isSupported(sourceMimetype) ||
                !AbstractImageMagickContentTransformerWorker.isSupported(targetMimetype))
        {
            // only support IMAGE -> IMAGE (excl. RGB)
            return false;
        }
        else
        {
            return true;
        }
    }
‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍