Aspose Words 9.7 gets an error when saving a Word document as PDF

Aspose.Words Product Family
1

In the attached project I get a “System.NullReferenceException was unhandled” when saving a Word document as a PDF. This works fine in Aspose.Words 9.4.1.
The stack trace is…

System.NullReferenceException was unhandled
Message = "Object reference not set to an instance of an object."
Source = "Aspose.Words"
StackTrace:
at xfbd1009a0cbb9842.x4724ed988e1000da.x1f490eac106aee12()
at xfbd1009a0cbb9842.x4724ed988e1000da.x20aee281977480cf(FieldStart x10aaa7cdfa38f254, FieldSeparator x3de314ab70bbd9bf, FieldEnd xca09b6c2b5b18485)
at xfbd1009a0cbb9842.x3759c06a3a4cf5d1.x43fef3435fba7a66(FieldStart x10aaa7cdfa38f254, FieldSeparator x3de314ab70bbd9bf, FieldEnd xca09b6c2b5b18485)
at x4adf554d20d941a6.x5c28fdcd27dee7d9.get_xd1b40af56a8385d4()
at x4adf554d20d941a6.x5c28fdcd27dee7d9.x3e04636bf524a4cf(xb9e48f11d7f06ec9 x27f5ecb735ac9676)
at x4adf554d20d941a6.xf0b374f4c0172a4c.x57b3c9e650685d36(x56410a8dd70087c5 x5906905c888d3d98, x56410a8dd70087c5 x62584df2cb5d40dd, x56410a8dd70087c5 x0e990edf4549ee50, Boolean xa17853d20c8c42bd, Boolean x4d2b4f056cf5bb8b)
at x4adf554d20d941a6.xf0b374f4c0172a4c.xf067dcd5f2631e2c(x56410a8dd70087c5 x5906905c888d3d98, Boolean xa17853d20c8c42bd)
at x4adf554d20d941a6.xf0b374f4c0172a4c.xcd61e66a5417dbee(x56410a8dd70087c5 x5906905c888d3d98, Boolean x2718ffc1fa17413a)
at x4adf554d20d941a6.x6d3ade29d016f4ea.x5f6867bc5a977cb1()
at x4adf554d20d941a6.x6d3ade29d016f4ea.xc3819e13f60dd8e6(xf6937c72cebe4ad1 x311e7a92306d7199, Boolean xcbd8250c1cb0998d)
at x4adf554d20d941a6.x20de8d9377d7de69.xc3819e13f60dd8e6(xf6937c72cebe4ad1 x311e7a92306d7199)
at x4adf554d20d941a6.x09e62a55cab70965.x5de571cf1cd1652c(xf6937c72cebe4ad1 x311e7a92306d7199)
at x4adf554d20d941a6.x09e62a55cab70965.x05220cdc6b4425eb()
at x4adf554d20d941a6.x09e62a55cab70965.xc3819e13f60dd8e6(xf6937c72cebe4ad1 x311e7a92306d7199, Int32 xcd3a9f82634fe5f9)
at x4adf554d20d941a6.x71da84fff8849445.xc3819e13f60dd8e6(x53cb1139c5c64ee6 xd7e5673853e47af4, Int32 xcd3a9f82634fe5f9, Boolean x3175070523842c98)
at x4adf554d20d941a6.x4ddd0723770f9758.xb1e18d74ac7e1b23()
at x4adf554d20d941a6.x4ddd0723770f9758.xb47a6df2eae4ba51()
at x4adf554d20d941a6.x4ddd0723770f9758.xc3819e13f60dd8e6(x3d1ad8ce75f0db3a xd3311d815ca25f02, Int32 xd284dd7d525c5491, Boolean x3175070523842c98, Boolean x4097fa47409be495)
at x4adf554d20d941a6.x3f7228e953be72ed.xd79114a9e7bc0d9e()
at x4adf554d20d941a6.x3f7228e953be72ed.xc3819e13f60dd8e6(x852fe8bb5ac31098 xe3e287548b3d01f5, Int32 xd284dd7d525c5491)
at x4adf554d20d941a6.x4af2add38e634ad4.xcbc2273143eac9ec(x852fe8bb5ac31098 xb6842aa1e60562e1)
at x4adf554d20d941a6.x4af2add38e634ad4.xc3819e13f60dd8e6(xc7f90d9c7c51cede xbbe2f7d7c86e0379)
at x4adf554d20d941a6.xea876d525d28ff96.xc3819e13f60dd8e6(x398b3bd0acd94b61 xd7e5673853e47af4)
at x4adf554d20d941a6.xac6c82c74ce247fb.xc3819e13f60dd8e6(Boolean xfad304b5f8f3bb5b)
at x4adf554d20d941a6.xeefdffd909e695da.xc3819e13f60dd8e6(Boolean xfad304b5f8f3bb5b)
at x59d6a4fc5007b7a4.xcde671c53995c411.xd9db07500873ae98(Document x3664041d21d73fdc, xdeb77ea37ad74c56 xdfde339da46db651)
at Aspose.Words.Document.UpdatePageLayout()
at Aspose.Words.Document.x410db0f4a89a6ef1(Boolean x24af0daafcd8fb8c)
at Aspose.Words.Document.get_xcde671c53995c411()
at Aspose.Words.Document.get_PageCount()
at xf989f31a236ff98c.x6c74398bceb133f8.xa2e0b7f7da663553(x8556eed81191af11 x5ac1382edb7bf2c2)
at Aspose.Words.Document.xf381a641001e6830(Stream xcf18e5243f8d5fd3, String xafe2f3653ee64ebc, SaveOptions xc27f01f21f67608c)
at Aspose.Words.Document.Save(String fileName, SaveOptions saveOptions)
at Aspose.Words.Document.Save(String fileName, SaveFormat saveFormat)
at SaveAsPDFError.Form1.button1_Click(Object sender, EventArgs e) in D:\Users\shinks\Documents\Visual Studio 2008\Projects\SaveAsPDFError\SaveAsPDFError\Form1.cs:line 28
at System.Windows.Forms.Control.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
at System.Windows.Forms.Control.WmMouseUp(Message & m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message & m)
at System.Windows.Forms.ButtonBase.WndProc(Message & m)
at System.Windows.Forms.Button.WndProc(Message & m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message & m)
at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG & msg)
at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason, Int32 pvLoopData)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
at SaveAsPDFError.Program.Main() in D:\Users\shinks\Documents\Visual Studio 2008\Projects\SaveAsPDFError\SaveAsPDFError\Program.cs:line 18
at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
InnerException:
2

Hello

Thank you for reporting this problem to us. I managed to reproduce the problem on my side. Your request has been linked to the appropriate issue. You will be notified as soon as it is resolved.
It seems the reason of the problem is TOC Entry Field, so please try using the following code to workaround this problem:

// Open document
Document doc = new Document("C:\\Temp\\in.doc");
RemoveFields removeFieldTOCEntry = new RemoveFields(FieldType.FieldTOCEntry);
doc.Accept(removeFieldTOCEntry);
doc.Save("C:\\Temp\\out.pdf");

RemoveFields class is attached.
Best regards,

3

Thank you, I will test this fix.

4

Hello,
Thank you for your additional information.
We will wait for your conclusions regarding a workaround.
Your issue #25447 is still unresolved. We will notify you as soon as the problem is closed.

5

The issues you have found earlier (filed as 25447) have been fixed in this .NET update and in this Java update.

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