PDF Tools

Hi,

Sometimes a tif image to pdf conversion fails to produce a pdf. Instead a blank pdf is produced or even more rarely a pdf is produced containing only part of the tif image.

The smart service does not produce any error output and shows as a success status of True.

Using v2.5.0 PDF Tools  smart service Convert Image to PDF (pdftools.ConvertImageToPDFWithDpiInput) on Appian 23.4

The images can be opened in paint (for example) and successfully and completely printed using the Microsoft print to pdf printer.

Is there anyway to diagnose the issue further (logs, etc)? 

Regards

To clarify, Allen and I are experiencing this issue in the "Fill PDF" process node.

I have a similar issue, but it appears to me that the plugin is no longer allowing PNG files.  Error I received was Not a JPEG file.  It was working great up until the Appian upgrade to 24.1

We have been using the 'Convert PDF to Image' smart service for a while to convert a PDF into a PNG with a transparent background. After we updated to the most recent version of this plugin, the PNG appears as a solid black image; it appears that the background is rendering as black instead of transparent. Is this a known issue?

I am getting below error with this version of the plugin. I have tried removing and re-installing the plugin. I am on Appian 23.4.

Unable to load class 'javax.imageio.ImageReadParam' because the bundle wiring for pdftools is no longer valid.
at org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1548)
at org.apache.felix.framework.BundleWiringImpl.access$300(BundleWiringImpl.java:79)
at org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.loadClass(BundleWiringImpl.java:1986)

I am getting this error on above plugin version, Appian version is 23.4, Cloud.

Exception in thread "ThreadPoolTaskExecutor-62870" java.lang.NoClassDefFoundError: javax/imageio/ImageReadParam
at com.github.jaiimageio.impl.plugins.tiff.TIFFImageReaderSpi.createReaderInstance(TIFFImageReaderSpi.java:118)
at javax.imageio.spi.ImageReaderSpi.createReaderInstance(ImageReaderSpi.java:320)
at javax.imageio.ImageIO$ImageReaderIterator.next(ImageIO.java:529)
at javax.imageio.ImageIO$ImageReaderIterator.next(ImageIO.java:513)
at com.appiancorp.ps.pdftools.ConvertImageToPDF.run(ConvertImageToPDF.java:77)
at com.appiancorp.process.runtime.framework.DefaultActivityExecutor$1.lambda$call$0(DefaultActivityExecutor.java:136)
at com.appiancorp.plugins.PluginUsageLogger.runWithPluginInformation(PluginUsageLogger.java:54)
at com.appiancorp.process.runtime.framework.DefaultActivityExecutor$1.call(DefaultActivityExecutor.java:136)
at com.appiancorp.process.runtime.framework.DefaultActivityExecutor$1.call(DefaultActivityExecutor.java:130)
at com.appiancorp.common.ContextClassLoaderSwitcher.runInContext(ContextClassLoaderSwitcher.java:28)
at com.appiancorp.process.runtime.framework.DefaultActivityExecutor.execute(DefaultActivityExecutor.java:130)
at com.appiancorp.process.engine.UnattendedJavaActivityRequest.execute(UnattendedJavaActivityRequest.java:88)
at com.appiancorp.process.engine.UnattendedJavaActivityRequestResponseCreator.getJavaActivityResultResponse(UnattendedJavaActivityRequestResponseCreator.java:22)
at com.appiancorp.process.engine.UnattendedJavaActivityRequest.getJavaActivityResultResponse(UnattendedJavaActivityRequest.java:67)
at com.appiancorp.process.engine.UnattendedJavaActivityRequest.execute0(UnattendedJavaActivityRequest.java:55)
at com.appiancorp.common.persistence.data.AppianDataUserContextProvider.executeWithConsistentDataReads(AppianDataUserContextProvider.java:143)
at com.appiancorp.process.engine.ProcessContinuationRequest.executeOuter(ProcessContinuationRequest.java:68)
at com.appiancorp.process.engine.ContinuationRequest.execute(ContinuationRequest.java:129)
at com.appiancorp.process.workpoller.UnattendedRequestHandlerBean.onMessage(UnattendedRequestHandlerBean.java:36)
at com.appiancorp.process.workpoller.WorkItem.run(WorkItem.java:110)
at org.springframework.jca.work.SimpleTaskWorkManager$DelegatingWorkAdapter.run(SimpleTaskWorkManager.java:241)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:750)
Caused by: java.lang.ClassNotFoundException: Unable to load class 'javax.imageio.ImageReadParam' because the bundle wiring for pdftools is no longer valid.
at org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1548)
at org.apache.felix.framework.BundleWiringImpl.access$300(BundleWiringImpl.java:79)
at org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.loadClass(BundleWiringImpl.java:1986)
at java.lang.ClassLoader.loadClass(ClassLoader.java:351)

• Updated deprecated APIs, added license file and updated min version to 23.2

Hi,

I am getting below error when I use the getpdftext function.

An error occurred while evaluating expression: pdfText:getpdftext(pv!rulesforInclusionpdf) (Expression evaluation error at function 'getpdftext': Error: Header doesn't contain versioninfo) (Data Outputs)

PDF document referenced in the function is generated from docx using pdf from docx

Any help is much appreciated. Thanks!

Hi, thanks for the reply! Unless there is another way to check in Appian, if there is the PDF is formed correclty, exactly that could be a good behavior.... A null might be fine. A null should mean that the function could not get any fields from the PDF. If the function response is null, it means there is no metadata and should mean that something is going on with that PDF and it is invalid. 

Hi mikel,
tbh this will be hard to maintain properly. I mean we are talking for a reason about "corrupted PDF". 
And if you dont have a valid PDF, how can the function be working on a reasonable level as "PDF tool" function?
What would be your expected behavior? No error?

kind regards,
Richard