EMF to SVG fonts issue

gm69267 · September 27, 2018, 7:04pm

Hi there,

We have an issue with EMF to SVG conversion on Linux/Unix servers.

When we try to convert the attached EMF image to SVG, the conversion is unsuccessful with very generic error “Cannot find any fonts installed on the system”, it never prints the font details that caused this exception.

Can we have the font details logged along with the exception that caused this issue ?

Code Snippet :

String dataDir = "C:\\emf-with-svg-content\\";	 
Image image = Image.load(dataDir + "image9.emf", new MetafileLoadOptions(true));
try {
	// Create an instance of EmfRasterizationOptions class and set
	// different options
	final EmfRasterizationOptions emfRasterizationOptions = new EmfRasterizationOptions();
	emfRasterizationOptions.setPageWidth(image.getWidth());
	emfRasterizationOptions.setPageHeight(image.getHeight());
	
	
	// call the save method and pass instance of SvgOptions class to
	// convert it to SVG format.
	image.save(dataDir + "image9.svg", new SvgOptions() {
		{
			setVectorRasterizationOptions(emfRasterizationOptions);
			
		}
	});
} finally {
	image.dispose();
}

Exception log :
|ERROR|5308028|ImageGenerationUtil|Exception while converting the image image8.emf->
com.aspose.imaging.coreexceptions.ImageSaveException: Image export failed.
at com.aspose.imaging.Image.a(Unknown Source)
at com.aspose.imaging.Image.save(Unknown Source)
at com.aspose.imaging.Image.save(Unknown Source)
at com.citi.icg.rendition.conversion.document.util.ImageGenerationUtil.convertEMFOrWMFImage(ImageGenerationUtil.java:469)
at com.citi.icg.rendition.conversion.document.util.ImageGenerationUtil.saveEMFOrWMFImage(ImageGenerationUtil.java:161)
.
.
.
.
at com.citi.icg.rendition.conversion.document.DocumentGenerator.generateJson(DocumentGenerator.java:86)
at com.citi.icg.rendition.conversion.document.DocumentGenerator.converttoJsonExternal(DocumentGenerator.java:860)
at com.citi.icg.rendition.conversion.document.DocumentGenerator$$FastClassBySpringCGLIB$$93f6e5fc.invoke()
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:736)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
at com.citi.icg.rendition.util.MethodLoggingInterceptor.invoke(MethodLoggingInterceptor.java:92)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:671)
at com.citi.icg.rendition.conversion.document.DocumentGenerator$$EnhancerBySpringCGLIB$$163bc93c.converttoJsonExternal()
at com.citi.icg.rendition.service.ConversionExecutor.convert(ConversionExecutor.java:101)
at com.citi.icg.rendition.service.ConversionExecutor.main(ConversionExecutor.java:36)
Caused by: com.aspose.imaging.internal.Exceptions.InvalidOperationException: Cannot find any fonts installed on the system.
at com.aspose.imaging.internal.Y.j.a(Unknown Source)
at com.aspose.imaging.internal.Y.j.a(Unknown Source)
at com.aspose.imaging.internal.Y.j.a(Unknown Source)
at com.aspose.imaging.internal.eQ.b.a(Unknown Source)
at com.aspose.imaging.internal.eO.b.e(Unknown Source)
at com.aspose.imaging.internal.eO.b.a(Unknown Source)
at com.aspose.imaging.internal.eO.b.a(Unknown Source)
at com.aspose.imaging.internal.eN.c.a(Unknown Source)
at com.aspose.imaging.internal.dV.q.a(Unknown Source)
at com.aspose.imaging.internal.dV.q.a(Unknown Source)
at com.aspose.imaging.internal.dV.q.a(Unknown Source)
at com.aspose.imaging.internal.dV.q.a(Unknown Source)
at com.aspose.imaging.internal.dV.D.b(Unknown Source)
at com.aspose.imaging.internal.dV.a.a(Unknown Source)
at com.aspose.imaging.internal.dV.a.export(Unknown Source)
… 49 common frames omitted

images.zip (129.1 KB)

mudassir.fayyaz · September 28, 2018, 3:46am

@gm69267,

I have observed the issue shared by you and suggest you to please first try using latest Aspose.Imaging for Java 18.9 on your end. If there is still an issue then please share the Operating System and Java details on your end. Please also ensure if the fonts used in your EMF are availble on machine where you are performing conversion.

gm69267 · October 5, 2018, 2:26pm

Hello there,

We have tried 18.9 but still have the same issue. Could you please add the font details to the exception log trace ?

OS details -
$ uname -a
Linux icgappuat01 2.6.18-419.el5 #1 SMP Wed Feb 22 22:40:57 EST 2017 x86_64 x86_64 x86_64 GNU/Linux

mudassir.fayyaz · October 5, 2018, 6:08pm

@gm69267,

I have worked with the issue shared by you and have created in our issue tracking system with ID IMAGINGJAVA-1098 in our issue tracking system to further investigate and resolve the issue. This thread has been linked with the issue so that you may be notified once the issue will be fixed.

gm69267 · October 16, 2018, 3:12pm

Hi there,

Issue looks to be beyond what is there in the log messages.

We have logged the existing fonts in the system and fonts used in the EMF/SVG and also missing fonts.

We could see the fonts used in EMF are part of the fonts list installed in the system. Below are code snippets and log messages.

//Code snippet used to log fonts used in the EMF file
EmfMetafileImage emfMetafileImage = new EmfMetafileImage(bis);
try{
logger.info(“UsedFonts:{}”, Arrays.asList(emfMetafileImage.getUsedFonts()));
logger.info(“MissedFonts:{}”, Arrays.asList(emfMetafileImage.getMissedFonts()));
}
catch(Throwable e)
{
logger.warn(“Error while getting used/missed fonts:{}”, imageName, e);
}

//Code snippet used to log fonts installed in the sysytem
GraphicsEnvironment graphicsEnvironment = GraphicsEnvironment.getLocalGraphicsEnvironment();
Font[] fontNames = graphicsEnvironment.getAllFonts();
for (Font s : fontNames) {
logger.warn("Fonts installed on the system {} ", s);
}

mudassir.fayyaz · October 17, 2018, 4:50am

@gm69267,

Thank you for sharing the additional details with us. We will get back to you as soon as the issue will be fixed.

mudassir.fayyaz · January 21, 2019, 4:18pm

@gm69267,

We have investigated the issue on our end. As shared earlier, the exception “Cannot find any fonts installed on the system” says that the Aspose.Imaging library does not find any fonts in the system at all.
Actually, Aspose.Imaging uses its font manager, which is different from Java AWT. Therefore, checking GraphicsEnvironment.getAllFonts () proves nothing, except that JDK has fonts in its composition.
In order for the export to work correctly, you need to install TrueType / OpenType fonts in one of the following folders:

/usr/share/fonts
~/.fonts
/usr/local/share/fonts
/usr/X11R6/lib/X11/fonts

or you can set font directory using

com.aspose.imaging.FontSettings.addFontsFolder ("path to root directory with fonts");

You can check also the presence of TrueType fonts using the bash command:
"fs-list : file"

Please note that only otf, ttf, ttc font files are used.