Information
  • Author: Appian Corporation
  • Type: Plug-in (Function & Smart Service)
  • Support: This plug-in or utility is not supported by the author. The content is free to use with a licensed product, but it is made available as-is and Community supported.
  • Industry: All Industries
  • Compatible Version(s): 23.2
  • First Released:
  • Last Updated:
  • Cost: Free
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Home » AppMarket » PDF Tools

PDF Tools

Overview

Contains multiple Smart Services and Functions for interacting with PDF Documents.

Key Features & Functionality

Smart Services:

  • Merge PDF - Merges multiple PDF documents into a single document.
  • Extract PDF Pages - Extracts a range of pages from an existing PDF into a new PDF.
  • Fill PDF - Populates the fields of a PDF Form and optionally flattens it disallow further changes.
  • Create PDF Content - Allows text to be added to a PDF with control over the style, position, and angle. An existing PDF can be updated or a new one created from scratch.
  • Convert PDF to Image - Creates an array of images or a multi-page tiff from a PDF.
  • Compress PDF - Compresses the images in the PDF to make it smaller.
  • Un-protect and Copy PDF - Using the document password, create an un-protected copy of a protected PDF.
  • Convert Image to PDF - Creates a PDF starting from one or many images. It also supports multi-page tiff images.
  • Encrypt PDF - Encrypts an existing PDF with a password.

Functions:

  • Get PDF Metadata - Retrieves metadata on the PDF: page count, title, author, security, encryption, etc.
  • Get PDF Text - Retrieves the text content from a PDF.
  • Get PDF Form Fields - Retrieves the populated form field values of an unflattened PDF.
  • Get PDF Signature Fields - Retrieves the populated signature field values of an unflattened PDF.
  • Get PDF Bookmarks - Retrieves the list of bookmarks and associated page number in the PDF

Anonymous
Parents

  • Hi,

    Just updated to 2.5.2 on Appian 24.2 using smart service convert Image to pdf.

    Following update errors are recurring. The errors from the system log are shown below. Any advice to resolve pls?

    Thanks

    2024-08-08 06:12:52,871 [ThreadPoolTaskExecutor-7808] ERROR com.appiancorp.process.workpoller.WorkItemListener - The following exception occurred while attempting to complete work item [[WorkId: 459, EngineId: execution00, Request: UnattendedJavaActivityRequest:102683 as deployment.admin by deployment.admin, ProcessId: 77271812, ProcessModelId: 213, Response: null]] - Exception: 
javax.resource.spi.work.WorkCompletedException: java.lang.NoClassDefFoundError: javax/imageio/stream/ImageInputStream
	at org.springframework.jca.work.SimpleTaskWorkManager$DelegatingWorkAdapter.run(SimpleTaskWorkManager.java:244)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
	at java.base/java.lang.Thread.run(Thread.java:840)
Caused by: java.lang.NoClassDefFoundError: javax/imageio/stream/ImageInputStream
	at com.github.jaiimageio.impl.plugins.tiff.TIFFImageReaderSpi.canDecodeInput(TIFFImageReaderSpi.java:101)
	at java.desktop/javax.imageio.ImageIO$CanDecodeInputFilter.filter(ImageIO.java:573)
	at java.desktop/javax.imageio.spi.FilterIterator.advance(ServiceRegistry.java:873)
	at java.desktop/javax.imageio.spi.FilterIterator.<init>(ServiceRegistry.java:867)
	at java.desktop/javax.imageio.spi.ServiceRegistry.getServiceProviders(ServiceRegistry.java:516)
	at java.desktop/javax.imageio.ImageIO.getImageReaders(ImageIO.java:654)
	at com.appiancorp.ps.pdftools.ConvertImageToPDF.run(ConvertImageToPDF.java:72)
	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$1.call(DefaultActivityExecutor.java:130)
	at com.appiancorp.common.ContextClassLoaderSwitcher.runInContext(ContextClassLoaderSwitcher.java:28)
	at com.appiancorp.process.runtime.framework.DefaultActivityExecutor.execute(DefaultActivityExecutor.java:130)
	at com.appiancorp.process.engine.UnattendedJavaActivityRequest.execute(UnattendedJavaActivityRequest.java:88)
	at com.appiancorp.process.engine.UnattendedJavaActivityRequestResponseCreator.getJavaActivityResultResponse(UnattendedJavaActivityRequestResponseCreator.java:22)
	at com.appiancorp.process.engine.UnattendedJavaActivityRequest.getJavaActivityResultResponse(UnattendedJavaActivityRequest.java:67)
	at com.appiancorp.process.engine.UnattendedJavaActivityRequest.execute0(UnattendedJavaActivityRequest.java:55)
	at com.appiancorp.common.persistence.data.AppianDataUserContextProvider.executeWithConsistentDataReads(AppianDataUserContextProvider.java:143)
	at com.appiancorp.process.engine.ProcessContinuationRequest.executeOuter(ProcessContinuationRequest.java:68)
	at com.appiancorp.process.engine.ContinuationRequest.execute(ContinuationRequest.java:136)
	at com.appiancorp.process.workpoller.UnattendedRequestHandlerBean.onMessage(UnattendedRequestHandlerBean.java:36)
	at com.appiancorp.process.workpoller.WorkItem.run(WorkItem.java:110)
	at org.springframework.jca.work.SimpleTaskWorkManager$DelegatingWorkAdapter.run(SimpleTaskWorkManager.java:241)
	... 3 more
Caused by: java.lang.ClassNotFoundException: Unable to load class 'javax.imageio.stream.ImageInputStream' because the bundle wiring for pdftools is no longer valid.
	... 26 more

  • in reply to LukeVaughan

    Hi,

    Any update please as this is causing production issues requiring manual intervention on many image conversions each day.

    Thanks

  • in reply to Ignacio Arriagada

    Hi,

    The issue seemed to be some sort of race condition where processing a single image worked fine but trying to process multiple images at the same time caused the issue.

    Reverting to the previous version was not possible, so with the aid of Appian support the plugin was removed, restart the application server and then reinstalled the plugin.

    The same process had to be performed to upgrade each of our environments.

    This cured the issue. 

    Please note that the same sort of issue was logged here (by me) about two years ago.

    Hope this helps

  • in reply to pauls0008

    Hi  we are having the same issue. Have you found any other detail or workaround? Was there any update on this?

Comment Children
  • in reply to Ignacio Arriagada

    Hi,

    The issue seemed to be some sort of race condition where processing a single image worked fine but trying to process multiple images at the same time caused the issue.

    Reverting to the previous version was not possible, so with the aid of Appian support the plugin was removed, restart the application server and then reinstalled the plugin.

    The same process had to be performed to upgrade each of our environments.

    This cured the issue. 

    Please note that the same sort of issue was logged here (by me) about two years ago.

    Hope this helps

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