Troubleshooting for PDF Converter
PDF couldn’t be opened
The PDF file may be damaged, or created with very untypical settings using third-party software.
You cannot open a password protected PDF file
The PDF file may be protected by open and permissions passwords and by limitations on how the PDF may be used. See Protected PDF Files.
Converted file has fewer pages than the original
Check the Image-only Pages options under Processing Options that appears on all the four processing panels (Standard Document, Legal, Spreadsheet and Form). If Skip is selected, the PDF Converter will leave out the image-only pages from the output file.
Converted file has some image-only pages
Check the Image-only Pages options under Processing Options that appears on all the four processing panels (Standard Document, Legal, Spreadsheet and Form). If the Add to Document as Image option is selected, all the pages without a text layer in the PDF file will be put as images in the converted file. Remember, in the Preview panel you can check whether the pages of a PDF file have a text layer or are image-only pages.
shows that a text layer was detected for a page.
shows the image-only pages.
Converted file has incorrect character display
The source file may use non-standard character encoding for some or all of its text. Enable the Recognize non-standard encoded pages option under Processing Options that appears on all the four processing panels (Standard Document, Legal, Spreadsheet and Form). Check also the language selection in the OCR Settings dialog box.
To do this click the 
OCR Settings button.
Form controls do not correspond to your needs
If the active form elements do not appear in the result file as requested, turn off the Create Form Controls option on the Form panel and start converting again. Insert the desired form controls in the result file in Microsoft Word.
Conversion is finished but some files could not be converted (error) or may have problems (warning).
Some text in the source file uses non-standard encoding. Enable the Recognize non-standard encoded pages option in the Standard, Legal, Spreadsheet or Form panel. Another reason can be that the option If First X pages are Image-only, stop is turned on (in the Standard, Legal, Spreadsheet or Form panel) and the PDF file to be converted has the same or fewer pages than the defined limit. E.g. If First 3 pages are Image-only, stop and the PDF file consists of three pages only. Turn off this option and choose Convert Page with OCR, or define a number less than the document size.
Avoid overwriting the original file or losing results: use “Save As…” rather than “Save” .
When direct conversion was started with the File > Open command from Microsoft Word, it is not possible to name the Word document beforehand. The converted file appears in Microsoft Word with its PDF or XPS name (e.g. report.pdf). To avoid overwriting the original file, select Save As… when the result file appears in Microsoft Word. Saving with the Save As command is recommended before editing or closing the document in Word. Do not use the Save or Close commands until you have changed the original filename to a Word document filename (e.g. report.doc). For more details, see Editing Documents in Word.
You cannot see the Nuance PDF Add-in in an Office 2007 application (Word, Excel, Outlook or PowerPoint)
Check the following:
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integration in an Office 2007application is enabled
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Add-ins in Office 2007 applications are enabled
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Nuance PDF toolbar is visible (concerns only Outlook)
To check integration:
In Nuance PDF Converter, select File > Preferences and check whether the required Office application’s check box is turned on. If not, select it and restart the application.
To check enabling/disabling Add-ins in Office 2007 applications:
In an Office application, click the 
Microsoft Office button > [Word / Excel / PowerPoint] Options > Trust Center > Trust Center Settings.. > Add-ins and check that the Disable all Application Add-ins check box is turned off.
For more information on Add-ins, consult the relevant Microsoft Office Help topic: Home > Security and privacy > Enable or disable add-ins in Office programs > View or change the add-in security settings.
To check Nuance PDF toolbar in Outlook 2007:
In Outlook 2007, select View > Toolbars. If you do not see 
in front of Nuance PDF, select it.
A Nuance PDF Add-in has been disabled because of an exceptional running error
You can re-enable an Add-in in the following way:
In an Office application, click the Microsoft Office button > [Word / Excel / PowerPoint] Options > Add-Ins. At the bottom of the panel, select Disabled Items from the Manage selection box and click the Go… button. Select the Nuance PDF Converter Add-in to re-enable PDF Converter and click the Enable button. Then click Close and restart the Microsoft Office application.