August, 2002

Adobe® Acrobat® Reader® 5.1 for Windows Read Me

Welcome to the Adobe Acrobat Reader 5.1 Read Me. Adobe Acrobat Reader is the free viewing companion to Adobe Acrobat. Acrobat Reader lets you view, navigate and print Portable Document Format (PDF) files. Adobe Acrobat is a complete solution for creating, enhancing, reviewing, editing, and sharing information in PDF. To learn more about Adobe Acrobat 5.0, visit
http://www.adobe.com/products/acrobat
This Read Me contains information on:

> System Requirements
> Installation Instructions
> Troubleshooting Issues

System Requirements

System Requirements for Acrobat Reader 5.1 for Windows

- Pentium®-class processor
- Microsoft® Windows 98 Second Edition, Windows Millennium Edition, Windows NT 4.0 with Service Pack 5 or 6 (Service Pack 6 recommended), Windows 2000, Windows XP Professional or Home Edition
- 64 MB of RAM
- 30 MB of available hard disk space (an additional 60 MB is needed temporarily during installation)
- Additional 70 MB of hard-disk space for Asian fonts (optional)
Web Browser Support

The web browsers within which PDF files may be viewed are:
Internet Explorer 5.0, 6.0
Netscape Navigator 4.5, 4.77, 6.1
America Online 6.0

Installation Instructions
Installing and Uninstalling Acrobat Reader for Windows
To install Acrobat Reader, follow these steps:
- Make sure you have at least 90 MB of available disk space
- Make sure you have turned off all anti-virus software before beginning the installation.
- Install Reader.
On some versions of Windows (Windows NT, Windows 2000, Windows XP) you need to have admin rights to install Acrobat Reader. [ 526383 ]
To uninstall Acrobat Reader, follow these steps:
- From Start select Settings, Control Panel, Add/Remove Programs
- Select Adobe Acrobat 5.0 and press the Add/Remove... button

Note: Uninstalling Acrobat Reader 5.1 also uninstalls versions 4.0 and higher of Acrobat from your system.You may later need to reinstall Acrobat. Please ensure that you have access to your original Acrobat CD and serial number before uninstalling Acrobat Reader 5.1.

Acrobat Reader 5.1 file and folder names

Acrobat Reader 5.1 is part of the Acrobat 5.0 family. The application is installed into the Acrobat 5.0 tree. To check the version of Acrobat Reader you are running, choose About Acrobat Reader under the Help menu.

Installation Issues
Make sure you have turned off all anti-virus software before beginning the installation. Device drivers may also conflict with Acrobat Reader's installer. Starting Windows 98 in Safe Mode, or starting Windows NT in VGA mode, causes Windows to load only essential standard device drivers.
If the Acrobat Reader installer or uninstaller fails to work properly, manually delete the file Uninst.isu from Program Files\Common Files\Adobe\Acrobat 5.0\98 or NT then reinstall Acrobat Reader and uninstall.
Installing Asian Language Files for Acrobat Reader 5.x
Asian Language Files are available for Acrobat Reader 5.x. With any language version of Acrobat Reader 5.x, you can display Adobe Portable Document Format (PDF) files that contain text in Chinese Simplified, Chinese Traditional, Japanese, and Korean (CJK). All you need to do is install the appropriate Asian font pack for use with Acrobat Reader. The Asian Language Support installers are available from Adobe's web site at:
http://www.adobe.com/prodindex/acrobat/cjkfontpack.html
Troubleshooting Issues
Using the Toolbar

Adobe Acrobat Reader 5.1 provides some of the same functionality as Adobe Acrobat including send mail, saving documents, comments, digital signatures, and advanced forms. These features, however, are only available when viewing special "rights-enabled" PDF documents. For PDF documents that do not contain these special rights, some tools will appear "grayed-out" and are inactive. This is normal. For additional information, see Help > Reader Help.

Acrobat Reader's toolbars can be torn-off, docked on the top, and their geometry may be changed. Torn-off toolbars cannot be combined by dragging the title bar of the toolbar; use the drag handle of the toolbar instead. [ 398112 ]
Viewing PDF files within Internet Explorer and Netscape
When attempting to view relatively large PDF files, you may see an error message saying "Page processing error. File input/output error. Time out during connecting." Other symptoms that you may see are Acrobat Reader displays blank pages or Acrobat Reader may hang. Check with your systems or network administrator that the version of Apache being used is 1.3.17 or greater. Acrobat Reader may exhibit the symptoms listed above with earlier versions of Apache. [ 417553 ]
Accessibility
An expanded version of Acrobat Reader for Windows includes support for the visually impaired. To determine if your copy of Acrobat Reader has accessibility functions, check for the presence of the MSAA plug-in in the Help > About Adobe Acrobat Plug-ins dialog.
Accessibility - Using Reflow with a screen reader
For reliable results with a screen reader, only reflow documents that are not being delivered to the screen reader one page at a time. You can control how documents are delivered to the screen reader by setting the Content Delivery preference in the Accessibility preference panel. [ 418683 ]
America Online - Using File > Open in America Online 6.0 will open a PDF file in a text editor.
When you go through the steps you are informed by a dialog box that the PDF file is not a recognized file type and will be opened in a text editor. To view a PDF file that is on your hard drive or LAN, just select it in Windows Explorer and Acrobat Reader will be launched and will load the file. [ 405406, 406627 ]
Chinese, Korean, and Japanese (CJK) Acrobat Substitution Fonts
Attempting to activate by Adobe® Type Manager® and use the Acrobat CJK substitution fonts that are installed by Acrobat (for example, KozMinPro-Regular-Acro.otf) is not recommended and results may be unpredictable. [ 390851 ]
CJK Text Display in Acrobat Reader Dialogs
On a Roman system, Chinese, Korean, and Japanese (CJK) text cannot be displayed in Acrobat Reader dialogs. Acrobat Reader requires a CJK system with the appropriate CJK system font in order to display CJK characters in its dialogs. [ 395326 ]
CJK Text Display when Overprint Preview is on
When a PDF containing CJK characters that have a relatively complicated glyph design, is viewed with Overprint Preview turned on, the text may look less clear than when Overprint Preview is turned off. [ 416395 ]
CJK Text Display of bolded text when magnification is applied
Some CJK bolded characters may be blurred if the original application created the bolded text with synthetic bolding. If the Smooth Text and Use CoolType preferences in the Display preference panel are turned off, when the document is magnified you may see some white areas or cracks. Acrobat 4.x writes a character four times to achieve bolding, and for some documents, such text may appear as four lines of text instead of appearing as bold text. In Acrobat 5.x, synthetic bolding is used. Adobe recommends turning on the Smooth Text and Use CoolType preferences in the Display preference panel to avoid seeing white areas or cracks when the bolded text is magnified. [ 418447 ]
CJK Forms
On a system which does not have Asian Language Support installed, if you open a CJK Forms PDF which contains differently encoded CJK characters than those the Form was created with, the CJK Form fields will not be displayed correctly. Most Form fields will not appear at all. To prevent this, be sure to install Asian Language Support on systems that will be viewing and using CJK Forms. See this ReadMe's section titled "Installing Asian Language Files for Acrobat Reader 5.x" above for additional information. [ 412829 ]
Find Dialog - Using Find to Locate Unicode Characters
You can use Find to locate Unicode characters within a PDF document. To do this, add a "\u" in front of the Unicode character for which you want to search. For example, to search for the Unicode equivalent of the ASCII character "A" , enter "\u0041" in the Find dialog. For some CJK characters, such as Unicode "4e01", you can specify "\u4e01". [ 413632 ]
Acrobat Reader 5.x support for the Hong Kong Supplemental Character Set
The Hong Kong Special Administrative Region Government recently introduced the Hong Kong Supplemental Character Set (HKSCS). Acrobat Reader allows you to view and print PDF files containing HKSCS characters on all supported Windows operating systems supported by Acrobat Reader (see the System Requirements section). If you would like to view or print PDF files that contain text using the Hong Kong character set, please install support for the Chinese Traditional character set using Custom Install, or installing the Chinese Traditional Language Pack. [ 418559 ]
Hong Kong Character Set and Comments and Bookmarks
Acrobat Reader 5.x supports the Hong Kong character set for text in a PDF file. It is an extension to the Adobe Chinese Traditional character set. If you would like to view PDF files that contain text using the Hong Kong character set, please install support for the Chinese Traditional character set using Custom Install, or installing the Chinese Traditional Language Pack. Since the Hong Kong character set is not part of the standard system fonts you will not be able to comment or create bookmarks using Hong Kong characters. [ 407877 ]
Installing Acrobat 3.x or 4.x After Installing Acrobat Reader 5.x
If you install Acrobat 3.x or 4.x after installing Acrobat Reader 5.x, Acrobat Reader will be unexpectedly launched every time a folder is opened in Windows Explorer. To avoid this problem, always uninstall Acrobat Reader 5.x before installing an older version of Acrobat. [ 400589 ]
Movie Plug-in - viewing a movie in a floating window
When viewing a movie that plays in a floating window, you can stop the movie at any time by pressing the Escape key. [ 410153 ]
Movie Plug-in - Remote URL requires QuickTime 4 or later
If you will be using the Movie tool to view Movies by pressing a link to a remote link, be sure to have QuickTime 4 or later installed on your system. [ 418201 ]
Netscape 6.0
Acrobat Reader 5.x supports Netscape 4.x and Netscape 6.1 browsers and installs a plug-in to work with these browsers. This plug-in enables users to download, view, navigate and print Adobe PDF files, and to fill in PDF forms while working inside the browser. With Netscape 6.0, PDF files must be downloaded in their entirety before they can be viewed. Also, with Netscape 6.0, PDF forms cannot be filled in when viewed within the Browser. Please use Netscape 6.1 if you have that option.
Nvidia TNT graphics card with True (32-bit) color set
If you are using a Nvidia TNT graphics card and your display is set to use True (32-bit) color, you may experience a general protection fault crash in Module NVDISP.drv. The crash will occur if the Opacity setting in the Comments preferences is set to less than 100% and there are one or more Comment popup windows overlapping. You can avoid the problem by setting the Opacity in the Comments Preferences to 100% or by setting the display to 16-bit color (in the Display Control Panel). Please check the Nvidia web site for a driver update that may solve this problem. [ 419590 ]
Printing ImageType 4 files to Lexmark printers
Image Type 4 is a feature of PostScript 3. While application software creates ImageType 4 files somewhat infrequently, a PDF created from a GIF file with transparency using Acrobat WebCapture will contain ImageType 4.
When files containing ImageType 4 are printed to the Lexmark printers listed below, the printer may hang and no output is produced. The Lexmark printer models are:
-Lexmark Optra C710 PS3, PS Version 3010.010, PS revision 2000411
-Lexmark Optra W810PS3, PS Version 3010.010, PS revision 990917
To work around this problem, you have two options:
1. Choose Print As Image from the Print dialog. This will produce results similar to what you see on the screen.
2. If your platform is Windows, you can change the Print Method from Language Level 3 to Language Level 2. However, on the Macintosh, there is no Print Method field. To get the same effect, you could edit the PPD file to make it reflect language level 2, for example, change:
*PSVersion: "(3010.010)"
to:
*PSVersion: "(2014.700)"
Do not change your PPD file if Print As Image produces the desired results. Forcing the file to print at language level 2 enables Image Type 4 to print, but all transparency will be lost. [ 416539 ]
Printing smooth shades to the HP4050N
Smooth shades may be clipped when you print to the HP4050N printer using HP's PCL 6 printer driver. You may want to try printing such files with HP's PCL 5e driver. [ 418321 ]
Reflow
Documents cannot be reflowed at certain magnification and window width combinations. Acrobat Reader magnifies the document to whatever magnification level it can display without failing. [ 401685 ]
Save A Copy
Acrobat Reader 5.1 contains a menu item and a toolbar icon called "Save A Copy". If you fill in a form within an Adobe PDF file in Acrobat Reader 5.1, your changes will not be preserved when you use this command unless the PDF file includes the Document Right "Save Document". Please see "Document Rights" in Help> Reader Help for more information.
If the PDF does not include the "Save Document" Document Right, only a copy of the original Adobe PDF file will be saved. [ 414048 ]
Searching is not supported for certain characters
Adobe Acrobat Catalog does not support the indexing of WinAnsi characters 0127 through 0158. This set of characters includes symbols such as currency symbols (for example, dollar sign, Euro, Yen). Adobe Acrobat Catalog also does not support the indexing of documents formattedwith ligatures enabled, lower case numerals, or with small caps. Since these characters can not be indexed, you cannot use Search to find occurences of them in a PDF file. [ 443269,418016 ]
WebBuy on Windows 2000
On Windows 2000, Service Pack 1 is required for WebBuy to show a Zip drive as a device in:
Edit->Preferences>General>WebBuy>Select Other Identifiers. [ 390998 ]
WebBuy on Windows 2000 on a system with multiple processors
If you buy an electronic book using WebBuy from one processor and later attempt to access the book from another processor you will be denied access. This may happen, for example, if you purchase the electronic book from one log-in and later attempt to access it from another log-in. To prevent this, use the same log-in to access the book as that used to purchase the book. [ 413006 ]
WebBuy requires the latest Iomega drivers
Be sure to install the latest Iomega drivers for all Jaz®, Clik!® or Zip® drives if you want to use the media for these drives as identifiers for WebBuy. Even if your system recognizes the drives, WebBuy will only recognize the media for licensing if the Iomega drivers have been installed. [ 413448 ]
Using Windows Internet Explorer
If you install Acrobat 4.x after Acrobat Reader 5.x, The Acrobat 4.x ActiveX Control will be used with the browser. Because an Acrobat Reader 5.x registry setting exists, Internet Explorer will always launch Acrobat 4 when it starts. To avoid this problem, uninstall Acrobat Reader 5.x before installing Acrobat 4.x. [ 366101 ]
Printing collated copies does not work on Windows 2000. [ 415358, 418016 ]
Using the right click command to print uses the PostScript Language Level setting of the previous print job on Windows NT and Windows 2000
If you open a document in Acrobat and print it to a PostScript Language Level 3 printer the language level used by Acrobat will be set to PostScript Language Level 3 by default. If you exit Acrobat and change the default printer to be a PostScript Level 2 printer and then right-click on a PDF file to request printing, the print job will abort because the PostScript Language Level is set to Level 3 not Level 2. To prevent this, after changing the default printer, open and print a document in Acrobat before using the right-click command to print. [ 416598, 418016 ]
Invalid Document Rights
If you open a PDF with Document Rights and get a message that says: ... rights are invalid... contact the author...", it is likely that the author of the PDF file changed the file after Document Rights were added to it. The author will need to reapply Document Rights to the file before Acrobat Reader 5.1 will be able to use the PDF as intended.. [ 500795 ]
Acrobat 3.x and PDF files with Document Rights
Acrobat 3.x may show error messages when opening a PDF file that includes Document Rights. [ 523105 ]
Zoom shortcut keys on Chinese Windows OS
On Chinese Windows OS, the shortcut keys Ctrl+Spacebar and Alt+Ctrl+Spacebar will bring up IME and not Zoom in or out. [ 525402 ]
Deselecting Text on Korean Windows OS
Instead of deselecting text, Shift+Ctrl+A could incorrectly bring up another application such as ICQ on your monitor. If this happens, click with your mouse on any selected text area to deselect all highlighted text in the document. [ 525222 ]
Error loading the Plug-In AcroFill.api
If you get the error message "There was an error loading the Plug-In AcroFill.api" when launching Acrobat Reader, you may have an older version of MSVCRT.dll. Please upgrade to the latest MSVCRT.dll or reinstall Windows using your installation CDs (in case it was erroneously replaced by some other installer). [ 526383 ]
Certified mode and PDF files with Document Rights
Acrobat Reader does NOT require the Certified Plug-ins Only option in the Options panel of the Preferences dialog box to open PDF files with additional usage rights. [ 529812 ]
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Copyright © 1987-2002 Adobe Systems Incorporated and its licensors. All rights reserved. Adobe, the Adobe logo, Acrobat, Adobe Type Manager, PostScript and Reader are either registered trademarks or trademarks of Adobe Systems Incorporated in the United States and/or other countries. Microsoft, Windows, and Windows NT are either registered trademarks or trademarks of Microsoft Corporation in the U.S. and/or other countries. Pentium is a trademark or registered trademark of Intel Corporation or its subsidiaries in the U.S. and other countries. HP is a registered trademark of Hewlett-Packard Company. Iomega, Clik!, Jaz, and Zip are trademarks of Iomega Corporation. All other trademarks are the property of their respective owners.

The contents of this file are subject to the Mozilla Public License Version 1.1 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.mozilla.org/MPL.This file has not been modified by Adobe and Source code may be found at http://www.mozilla.org/source.html. The Original Code is Mozilla Communicator client code, released March 31, 1998.The Initial Developer of the Original Code is Netscape Communications Corporation. Portions created by Netscape are Copyright © 1998 Netscape Communications Corporation. All Rights Reserved.
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