View PDF Documents

You can view PDF files with Viewing SDK in one of three ways:

  • View the PDF by using the Adobe Acrobat ActiveX control.

  • View the PDF by using the Microsoft WebBrowser ActiveX control.

  • View an image of each page of the PDF by using the graphic-based PDF reader (kppdf2rdr).

By default, Viewing SDK uses the Acrobat ActiveX control to view PDF documents. If you do not want to redistribute the Acrobat Reader with your application, you can use the graphic-based reader instead.

Use the Acrobat ActiveX Control

The Acrobat control is automatically installed with Adobe® Reader® 4.0 or later. To download the Adobe Reader, go to www.adobe.com.

Use the Microsoft WebBrowser ActiveX Control

You can use the Microsoft WebBrowser ActiveX control to view PDF documents. The Microsoft WebBrowser ActiveX control is installed automatically with Microsoft Internet Explorer 3.0 or later. To use the WebBrowser ActiveX control to view PDF documents, follow one of these procedures:

In the kvsdk.ini file

  1. Open the kvsdk.ini file with a text editor. The file is installed in the root of the Windows directory.

  2. In the [General] section of the kvsdk.ini file, set the UseHTMLPluginForPDF parameter to True.

  3. Pass the highlight or search term in by using VAPIMWP_INIT_OPENDOCEX (the extended version of VAPIMWP_INIT_OPEN_DOCUMENT. Refer to ihademo.cpp for details) with the OpenDocInfo.lpszHighlight structure. For example:

    OpenDocInfo.lpszHighLight="search_term";

    where search_term is the highlight or search term.

In the registry file

  1. Open install.reg.txt in a text editor. The file is installed in the install\redist directory, where install is the directory in which you installed Viewing SDK.

  2. Under the [HKEY_LOCAL_MACHINE\Software\Verity\Viewing SDK\General] key, set the following parameter:

    "UseHTMLPluginForPDF"="true"
  3. Save the file as install.reg.

  4. Import the file into your Windows system registry.

Use the Graphic-Based PDF Reader

The kppdf2rdr graphic-based reader produces high-fidelity raster images. However, it has the following limitations:

  • Does not support anything beyond viewing, such as highlighting or annotation.

  • Does not support PDFs containing XFA forms content.

To use the graphic-based reader to view PDF documents, follow one of these procedures.

In the kvsdk.ini file

  1. Open the kvsdk.ini file with a text editor. The file is installed in the root of the Windows directory.

  2. In the [VAPI] section, change the following line:

    230=doc 0 kvaxcc.dll

    to

    230=pic 0 kvpicve.dll

  3. In the [KVPICVE] section, set the following parameter.

    230=kppdf2rdr.dll

In the registry file

  1. Open install.reg.txt in a text editor. The file is installed in the install\redist directory, where install is the directory in which you installed Viewing SDK.

  2. Under the [HKEY_LOCAL_MACHINE\Software\Verity\Viewing SDK\VAPI] key, change the "230"="doc 0 kvaxcc.dll" parameter to:

    "230"="pic 0 kvpicve.dll"
  3. Under the [HKEY_LOCAL_MACHINE\Software\Verity\Viewing SDK\KPICVE] key, set the following parameter.

    "230"="kppdf2rdr.dll"
  4. Save the file as install.reg.

  5. Import the file into your Windows system registry.