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B070501 - Special characters in DjVu file names cause problems B060601 - PDFtoDjVu installer overwrites existing configuration file B060413 - Examples fail to link in debug mode using DjVu SDK B060412 - Exception generated when launching Netscape under Win98 B060411 - Unhandled exception with djvu_image_copy_resize and B060409 - Wang annotations unsupported B060408 - Transposed letters in Group 4 TIFFs or color documents B060407 - Failure converting PDFs with "Scanned PDF" profile B060315 - Virtual Printer dialogs not being displayed B060314 - Editor Installer and VPD runtime problems on NT 4.0
DjVu Browser Plug-in |
D070102 - Cannot view online DjVu files
directly using Internet Explorer
D070101 - Severe Error: Can’t load resource
file, incompatible version
D060503 - Error occurs in NPP_Write()
D060502 - Unreadable text when downloading
plug-in on Mac OS X
D060501 - DjVu file opens as unrecognized
text on Mac
D060410 - DjVu files with apostrophe in
filename don't open in Internet
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Product
Document Express 5.x
Summary
"Watch folders" in Document Express version 5.0 and later enable complete automation of the document conversion process for most commonly used scanned image documents such as TIFF, JPEG and BMP, as well as specialized conversion of both scanned and electronic PDFs.
Details
The "Watch Folder" option enables continuous processing of the root folder.
Product
Document Express Enterprise 5.x
Summary
In Document Express Enterprise Edition version 5.0 and later, hyperlinks can be retained when you convert a PDF to DjVu.
Details
From within Workflow Manager, change the PDF Profile from
Scanned to Electronic.
Product
Document Express Enterprise
Summary
The OCR results of a DjVu file contain errors that need to be fixed.
Solution
OCR results are stored in the DjVu "hidden text layer." Document Express Enterprise Edition includes tools that enable you to export and import this hidden text layer as XML. The best strategy is to export the hidden text to XML, correct any errors, then reimport it into the DjVu file.
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Please use the "Product Activation Form" at the URL below and specify that you would like to move the license and cartridge to a new CPU in the notes section.
http://www.lizardtech.com/support/activation.php
This service is only available for customers with a current support contract.
The LizardTech DjVu IFilter is a tool that enables searching over DjVu document collections by keyword or phrase using Microsoft SharePoint or standard Microsoft Windows search functionality. In other words, it enables you to search over the "hidden text layer" that is found in most DjVu files. If you are using Windows (NT 4.0, 2000 or XP), download and install our DjVu IFilter and your system will instantly be able to search through the textual content of DjVu documents via the standard Windows search interface.
The DjVu IFilter also enables large repositories of DjVu files to be searched using applications based on the Microsoft Index Server. This includes Microsoft applications such Site Server and SharePoint Server.
Did you install the Virtual Printer driver, in addition to the "LtiVpd.exe" utility? If so, you should be able to select it from your list of printers in any application.
Note:LizardTech's Document Express Enterprise package includes a PDFtoDjVu utility that does a much better job of converting PDFs to DjVu format. Additionally, Document Express Enterprise includes a "scriptable" virtual printer that you can use in a script or batch file.
Document Express Professional does not allow batch processing of images per se. It does have a "Virtual Printer Driver" that allows you to submit documents from Microsoft Word, Excel, and other Windows applications and converts them to DjVu format.
You may send multiple print jobs at a time to the Virtual Printer. However, there is no batch conversion utility for TIFF, JPG, etc. to DjVu format in Document Express Professional.
Workflow Manager provides a graphic user interface (GUI) for easy access to and control of the applications included as part of Document Express Enterprise on Windows. Workflow Manager enables you to create, edit and run jobs. A job is a series of document conversion and processing operations that take advantage of the DjVu® technology and file format. For example, a job run in the Workflow Manager can consist of:
A bundled DjVu document is a single DjVu file that contains several encoded images, each of which appears as a separate page in the document. Bundled documents contain all shared dictionary information. If necessary, Document Express renames any conflicting file names.
Use bundled DjVu documents for archiving, sending email, copying between file systems, and working with other applications where it is practical to have a single file.
An indirect DjVu document consists of several DjVu files, each of which appears as a separate page in the document. Unlike a bundled DjVu document, however, an indirect document does not contain the image data from these files. Instead, it is similar to a directory in that it contains references to the DjVu files. These references are linked together by an index file, which you can remove or rename without affecting the referenced DjVu files.
Document Express also copies files from other directories and, if necessary, renames them if their names conflict with a file in the directory where the index file is located.
Use indirect DjVu documents to publish files on the Web or to distribute files that are too large to write into a single file.
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Product
Document Express, DjVu Browser Plug-in
Summary
Special characters prevent you or your users from opening DjVu files in the DjVu Browser Plug-in.
Causes
Creating DjVu documents from or editing files whose names contain special characters, including "#", "%", "$", "@" and others, can result in files that are incompatible with the DjVu Browser Plug-in.
Solution
Remove special characters from file names prior to adding or combining pages or files into a bundled or indirect DjVu file.
To avoid problems, do not use special characters when naming your DjVu files. Use standard characters such as the letters A-Z, underscore ("_"), hyphen or dash ("-"), and the numbers 0-9.
Product
PDFtoDjVu, Document Express
Enterprise
Summary
PDFtoDjVu installer overwrites existing
configuration file when user specifies Document Express Enterprise
directory for installation.
Details
PDFtoDjVu can be used
as a component of Document Express Enterprise. If you specify
the Enterprise directory when reinstalling or updating the
PDFtoDjVu application, the new installation overwrites all
the old PDFtoDjVu files, including the configuration file,
thus eliminating any custom profiles you may have saved.
Solution
If you have any custom profiles to save, make a copy of your
configuration file prior to overwriting the old PDFtoDjVu
application.
Product
DjVu SDK 5.0 for VC7
Summary
HelloDjVuSDK and DjVuSDK_Viewer are MFC-based examples that ship with the SDK. They will not link in the debug configuration for VC7.
Details
The following errors are typical:
Product
Document Express Enterprise 5.0, 5.1
Summary
On a Win98 system with Netscape 6 configured as the default browser, an unhandled .NET runtime exception is generated when you click the link on the Document Express Enterprise Cartridge Status dialog.
Details
The browser opens normally. The exception is not generated if the default browser is Internet Exporer. The exception is not generated on Windows 2000.
Workaround
The recommended workaround is to paste the link into another instance of the browser and restart the application.
Status
This is a known issue with Document Express and is scheduled to be fixed in a future release.
TT-Ref Number
12037
Product
DjVu SDK 5.0
Summary
djvu_image_copy_resize and djvu_image_resize cause an unhandled exception and cannot be used.
Causes
The DjVu SDK includes APIs that allow conventional raster images to be resized. The above products contain defects which prevent these APIs from being used. If the input image is being decoded from a DjVu file, please use the workaround as described below.
Workaround
If the image to be resized is coming from a DjVu file, then the djvudecode API can be used instead. Please see the SDKView0 example that ships with the SDK. Snippets follow:
Code:
char * Argv[2];
Argv[0]="-";
Argv[1]=argv[1];
Argv[2]="-"; int Argc = 3;
// this djvu_image will contain
pixel data after the decoder fills it.
djvu_image *aImg[1];
...
// set up options structure
djvu_decode_options *opts;
opts=djvu_decode_options_alloc(0,argc,argv);
// attach the
djvu_export to the decoder via the options structure.
opts->process.output_stream
= DjVuExp;
opts->process.output=0; // no file system output
opts->transform.hsize=96; opts->transform.vsize=112;
// do
some error checking and execute the decode request
if(djvu_decode_haserror(opts))
{
djvu_decode_perror(opts, "Error" );
DjVuWriteMessage( "djvudecodemain.usehelp" );
}
else
{
if (! djvu_decode(opts))
// decode the djvu file
here (output to the djvu_export)
{
// remember where the SDK
put the djvu_image it allocated so we can delete it on destruction
m_pDjVuImage = aImg[0];
djvu_decode_perror(opts, "Error" );
}
}
// free the options structure djvu_decode_options_free(opts);
return 0;
TT-Ref Number
11350
Product
Document Express Enterprise & Professional 5.0, 5.1
Summary
"Kodak Imaging for Windows" writes annotations in "Wang Annotation" format. This is a proprietary extension to the TIFF standard and is not supported by Document Express products.
Details
"Kodak Imaging for Windows" writes annotations such as:
in "Wang Annotation" format. If you convert such a file, the image portion converts properly but the Wang Annotations do not. Document Express Enterprise posts the following warning messages:
The tiff 6 specification defines the TIFF format and makes an allowance for "private tags". An organization may wish to store information meaningful only to that organization in a TIFF file. Tags numbered 32768 and higher, sometimes called "private tags", are reserved for that purpose. The Wang Annotations (tag 32932) are an example of such a private tag. With a few exceptions, most popular imaging programs will fail to recognize these tags.
TT-Ref Number
10140
Product
Document Express Enterprise & Professional 4.1, 5.0, 5.1
Summary
DjVu documents created from low resolution scans sometimes exhibit transposed letters or numbers and other flaws. This occurs in both black and white and in color document images.
Causes
The JB2 compression used in DjVu allows a fidelity-for filesize tradeoff. "Lossless" preserves all the details of the original mask. Other options allow varying degrees of loss with a corresponding file size reduction. In most cases this is appropriate. However, for some noisy scans, this can result in transposition errors (e.g. a "8" being substituted for a "6").
Solution
Where possible, scan at a resolution of at least 300 dpi. When converting documents with critical numbers (e.g. financial docs) or from low-quality scans (e.g. faxes), use the "lossless" option in the Advanced Text Settings in the GUI version, and the --lossless switch in the command line.
TT-Ref Number
10926
Product
Document Express Enterprise 5.0, 5.1
Summary
Document Express fails to convert large multipage PDFs to DjVu format with "Scanned PDF" profile.
Causes
The "Scanned PDF" profile rasterizes each page of a multiple-page document separately to a temp file that sometimes exceeds application limitations, resulting in a failed job.
Solution
The number of pages beyond which the "Scanned PDF" profile becomes inappropriate for a particular PDF file is variable, but a general guide is that when converting PDF documents of more than 79 pages to DjVu, you should use one of the "Electronic PDF" profiles, not the "Scanned PDF" profile.
TT-Ref Number
11258
Product
Document Express Enterprise 4.1, 5.0, 5.1
Summary
Application dialog does not appear as expected when using the Virtual Printer (VPD).
Causes
The VPDAdmin control sets the QuietMode property to True when the user invokes the VPDPrint method. However, in the event of an error, sometimes this value is not restored.
Solution
Run the ResetQuietMode.js script. This will restore the QuietMode property.
Notes
VPDAdmin ActiveX control allows scripting the Virtual Printer in an ActiveX environment. To prevent the "Professional Virtual Printer" dialog from posting (and requiring interactive input from the user), the VPDPrint method sets the QuietMode property to true. In a scripted environment, user input is taken from the script, not the dialog. If the method fails, the QuietMode property remains true. In this case, when a user interactively prints to the VPD, the print job will succeed. However, because the dialog never posts, the DjVu file is written to a default directory / filename which the user typically does not know.
TT-Ref Number
11521
Product
Document Express PRO Editor 6.0, Lizardtech Virtual Printer 4.1
Summary
The affected products fail to work as expected on Windows NT 4.0 unless IE4.0 or IE4.01 was installed.
Details
Causes
The version of Shell32.dll that shipped with NT4.0 is obsolete. The applications require Shell32.dll version 4.70 or later.
Solution
Update the Shell32.dll to version 4.70 or later. This is best accomplished by installing either Internet Explorer 4.0 or 4.1.
Notes
Windows NT4 originally shipped with Shell32.dll version 4.0. Updating Internet Explorer to version 4.0 or 4.01 will update Shell32.dll to version 4.72 and solve this problem. No other Internet Explorer update includes an update of this dll. Therefore, updating directly from an earlier version of Internet Explorer to a later version will not solve this problem. You must upgrade to either Internet Explorer 4.0 or 4.01 first.
From MSDN article:
The 4.00 versions of Shell32.dll and Comctl32.dll are found on the original versions of Windows 95 and Windows NT 4.0. New versions of Commctl.dll were shipped with all Internet Explorer releases. Shlwapi.dll first shipped with Internet Explorer 4.0, so its first version number is 4.71. The Shell was not updated with the Internet Explorer 3.0 release, so Shell32.dll does not have a version 4.70. While Shell32.dll versions 4.71 and 4.72 were shipped with the corresponding Internet Explorer releases, they were not necessarily installed (see note 2). For subsequent releases, the version numbers for the three DLLs are not identical. In general, you should assume that all three DLLs may have different version numbers, and test each one separately.
All systems with Internet Explorer 4.0 or 4.01 will have the associated version of Comctl32.dll and Shlwapi.dll (4.71 or 4.72, respectively). However, for systems prior to Windows 98, Internet Explorer 4.0 and 4.01 can be installed with or without the integrated Shell. If they are installed with the integrated Shell, the associated version of Shell32.dll will be installed. If they are installed without the integrated Shell, Shell32.dll is not updated. No other versions of Internet Explorer update Shell32.dll. In other words, the presence of version 4.71 or 4.72 of Comctl32.dll or Shlwapi.dll on a system does not guarantee that Shell32.dll has the same version number. All Windows 98 systems have version 4.72 of Shell32.dll.
TT-Ref Number
13851
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Product
DjVu Browser Plug-in
Summary
You receive an error message when attempting to view a DjVu file directly (not embedded within an HTML page) over the Internet using Internet Explorer 7.0 (IE7).
Cause
The DjVu Browser Plug-in is an ActiveX mimetype handler. An acknowledged defect in IE7 causes a failure to view ActiveX objects when local machine lockdown is disabled.
Workaround
Enable local machine lockdown as follows:
Note: If the problem continues, restore your security defaults as follows:
TT-Ref Number
14965
Product
DjVu Browser Plug-in for Windows
Summary
After upgrading the DjVu Browser Plug-in, you get the following error when trying to view a DjVu document:
"Can’t load resource file, incompatible version."
Cause
If the plug-in is running during the upgrade or if, for other reasons, plug-in resources are locked during the upgrade, the installer fails to overwrite some of the required files. As a result there is a mismatch between the control’s version and that of its resource file.
Solution
Additional Information
Most Operating Systems will present the "Retry, Ignore, Cancel" warning message when the locked resource is encountered.
If you are presented with these options the "Reboot" option will reboot the machine and correctly upgrade the plugin for IE and the Standalone Viewer. However, Mozilla-based browsers (such as FireFox) are not correctly upgraded by this procedure.
TT-Ref Number
13446
Summary
You are trying to view a DjVu document when you get the error:
“An error has occurred in NPP_Write().”
Causes
The NPP_Write error is caused when the plug-in does not receive the entire image from the web server. This is not a problem with the DjVu Plug-in, but with the website you are visiting.
This error could also be caused by a missing page in a local indirect multipage file.
For information about indirect files, see Document Express FAQ article #G060402 - "What is an indirect DjVu document?"
Summary
When you attempt to download the DjVu Browser Plug-in for Mac OS X, you may receive a page of garbled or unreadable text.
Causes
You are not using Safari to download the plug-in.
Solution
Please use Safari to download the plug-in.
Summary
DjVu file opens as unrecognized text on Mac.
Solution
Version
DjVu Browser Plug-in (all versions)
Summary
DjVu files with filenames containing an apostrophe (e.g. “Sally’s Resume.djvu”) will not open in Internet Explorer.
Causes
This is a problem with some versions of Internet Explorer. It does not occur with 6.0.2800.1106 SP1. It does occur with Internet Explorer 6.0.2800.1106 SP1; Q867801;Q863353 and later. It does not occur with Mozilla or Netscape. Other ActiveX-based viewing technologies are similarly affected.
TT-Ref Number
9636
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Support
