Monster Media 1993 #2/Image.iso/os2/pmjpg131.zip/PMJPEG.HLP

OS/2 Help File | 1993-05-17 | 26KB | 624 lines

ΓòÉΓòÉΓòÉ 1. Introduction ΓòÉΓòÉΓòÉ

PMJPEG is a shareware image viewer with image processing and conversion
capabilities for OS/2 2.x.  PMJPEG is a port of WinJPEG to OS/2 2.x.

PMJPEG v.1.30 has the following features:

Γûá display JPEG, GIF, TIFF, Targa, PCX, Windows BMP, or OS/2 BMP images
Γûá export an image to JPEG, GIF, TIFF, Targa, PCX, Windows BMP, or OS/2 BMP images
Γûá capability of generating 256-color OS/2 desktop-background bitmaps that use the system colors
Γûá display of 24-bit images with 1-pass/2-pass quantization and Floyd-Steinberg dithering
Γûá color balance: red, green, and blue adjustment
Γûá hue, saturation, and brightness adjustment
Γûá contrast enhancement
Γûá image rotation, vertical or horizontal flip, and image resizing
Γûá image cropping
Γûá batch file compression of GIF, TIFF, or TARGA files to JPEG File Interchange Format (JFIF)
Γûá copy an image to the clipboard
Γûá paste an image from the clipboard
Γûá slideshow: display selected files sequentially with a cycle option
Γûá image buffering in a cyclic slideshow
Γûá support for file name extension association and starting a slideshow from the command line

In order to see images displayed with the right colors, you must use a version
of OS/2 and a 256 color driver that support palette manager. Both OS/2 2.0 with
the Service Pack and December 1992 OS/2 2.1 beta support palette manager.

If you are using the 256 color ET4000 driver that comes with OS/2 2.1 beta,
you'll notice that the image under the dialog box or under the drop-down menu
is not re-drawn correctly.  This is a bug in the ET4000 driver.  Use the
Auto-Refresh option if you have this problem.

When you exit, the system colors may not return to normal.  This appears to be
a bug with the palette manager of the December 1992 OS/2 2.1 beta. However, the
palette does appear to correct itself after you open and/or close a window,
such as the window list.


ΓòÉΓòÉΓòÉ 2. JPEG ΓòÉΓòÉΓòÉ

Joint Photographic Experts Group (JPEG)  refers to a still-picture compression
standard that specifies several modes of operation.  The mode used by the
Independent JPEG Group's(IJPEG) software, which is incorporated into PMJPEG, is
sequential buildup;  in this mode,  each component of an image is encoded in a
left-to-right and top-to-bottom scan.  Sequential mode is lossy, which means
that when you compress an image, you will lose information.  That is, when you
decode the compressed image, the decoded image will not exactly match the
original.  One reason that sequential mode JPEG is lossy is that the algorithm
compresses an image by removing visually insignificant information, colors that
the human eye cannot detect.


ΓòÉΓòÉΓòÉ 3. Converting File Formats with PMJPEG ΓòÉΓòÉΓòÉ

Because most photographic images with 2 colors(monochrome) or 16 colors do not
have decent fidelity, PMJPEG does not fully support these color modes.

On the basis of the display mode, the image format, and PMJPEG options, PMJPEG
will quantize or dither an image before displaying it.  Regardless of these
factors, when PMJPEG loads images stored in 1 or 4 bits per pixel, it will
losslessly convert them to an 8 bits per pixel format.

If you are using a 16 color display driver and you enable the "8-bit Bitmap"
option, PMJPEG will quantize an image to 16 colors in some cases.  We recommend
that you do not use this color mode to convert images from one format to
another.

In 256 color video mode or better, with the "8-bit Bitmap" option enabled, all
24-bit images(i.e. 24 bits per pixel) are quantized to 256 colors before
displaying them.  With this option enabled, you can convert a 24-bit image to
an 8-bit one.  1, 4, and 8-bit images are automatically stored in 8-bit format
with no data loss and displayed.  If you are converting a 24-bit image to a
24-bit output format in this color mode, you should turn off the "8-bit Bitmap"
option before loading that image.

The preceding conversion restrictions do not apply when using Batch Compression
to compress images to JPEG format.  They only apply when the Save option is
used from the menu.

If you are creating a bitmap to be used as a 256-color OS/2 desktop-background
image, use the Map to System Colors function before saving the image as an OS/2
BMP file.  If you are converting a 24-bit image to a 256-color OS/2 BMP,
remember to turn of f the 8-bit Bitmap option before you load the image.  The
Map to System Colors feature forces the image to use the system colors defined
by the OS/2 desktop.


ΓòÉΓòÉΓòÉ 4. Image File Formats ΓòÉΓòÉΓòÉ

o JPEG File Formats
o TIFF
o Graphics Interchange Format (GIF)
o Targa
o PCX
o BMP


ΓòÉΓòÉΓòÉ 4.1. JPEG File Formats ΓòÉΓòÉΓòÉ

The JPEG committee has not specified a standard file format, and consequently,
many applications of the JPEG algorithm use their own proprietary format.
PMJPEG uses the JPEG File Interchange Format(JFIF) which transports only pixel
information.  JFIF is supported by the IJPEG Group's software and other
programs based on their code.

Handmade Software's GIF2JPG and Image Alchemy use a proprietary JPEG format
that is not compatible with the JFIF standard.  This proprietary format is not
supported by PMJPEG.  When you use GIF2JPG v.2.0, remember to leave out the
"-s" option to produce a JPEG file that is compatible with the JFIF standard
and viewable with PMJPEG.

If you have to use a DOS converter,  we recommend that you use the IJPEG
Group's cjpeg program.  Otherwise, you should use PMJPEG's Batch Compression
feature, which performs the same task as cjpeg except that GIF, TIFF, and TARGA
are the only formats supported.


ΓòÉΓòÉΓòÉ 4.2. Graphics Interchange Format (GIF) ΓòÉΓòÉΓòÉ

PMJPEG can view interlaced/non-interlaced GIF87a and GIF89a files, and it can
save non-interlaced GIF87a files. If a GIF89a file contains more than one
image, it will display the first image in the file.


ΓòÉΓòÉΓòÉ 4.3. Targa ΓòÉΓòÉΓòÉ

PMJPEG can view uncompressed TARGA files stored with 8, 15, 16, 24, or 32 bits
per pixel and it can save uncompressed TARGA files with 8 or 24 bits per pixel.


ΓòÉΓòÉΓòÉ 4.4. PCX ΓòÉΓòÉΓòÉ

PMJPEG can view PCX files stored with 1, 4, 8, or 24 bits per pixel. If a 1, 4,
or 8 bits per pixel PCX file does not have a valid palette, PMJPEG will use a
default palette. It can save PCX Version 5.0 files with 8 or 24 bits per pixel.


ΓòÉΓòÉΓòÉ 4.5. BMP ΓòÉΓòÉΓòÉ

PMJPEG can view Windows and OS/2 (1.x and 2.0) BMP files stored with 1, 4, 8,
or 24 bits per pixel and can view BMP files that are run-length encoded(RLE).
It can save uncompressed Windows or OS/2 BMP files in 8 or 24 bits per pixel
and can save BMP files with RLE.

Note that some graphics viewers use the file extension ".RLE" for run-length
encoded Windows BMP files.  PMJPEG uses the ".BMP" extension as a default for
such files.


ΓòÉΓòÉΓòÉ 4.6. Tagged Interchange File Format (TIFF) ΓòÉΓòÉΓòÉ

PMJPEG supports a subset of the TIFF 6.0 specification.  PMJPEG can view TIFF
files stored with 1, 2, 4, 8, or 24 bits per pixel.  PMJPEG can read TIFF
images stored in strip format, in which the image is divided into horizontal
strips of pixels, and tile format,  in which an image is divided into
rectangular grids of pixels.  The compression modes LZW, Packbits, Thunderscan,
and CCITT(RLE,RLEW,FAX3,FAX4) can be read as well as uncompressed TIFF images.

PMJPEG can save uncompressed or LZW compressed TIFF files with 8 or 24 bits per
pixel.  TIFF files are saved in strip format.


ΓòÉΓòÉΓòÉ 5. Menu Commands ΓòÉΓòÉΓòÉ

The menus are ordered by the following main topics:

o File Menu
o Edit Menu
o Options


ΓòÉΓòÉΓòÉ 5.1. File Menu ΓòÉΓòÉΓòÉ

The File menu includes commands that enable you to open and save files, to
batch convert files to JPEG, and to display multiple images in a selected
order.

o Open
o Save
o Save All Options
o Delete
o Batch Compression
o Slide Show
o Exit


ΓòÉΓòÉΓòÉ 5.1.1. File Open ΓòÉΓòÉΓòÉ

Select a file to display.

The list boxes in the left column display the drives and the directories in the
current path, and the list box in the right column displays the files in the
current path.

To display a file, click on a file from the file list and press "OK," or double
click on the desired file.


ΓòÉΓòÉΓòÉ 5.1.2. File Save ΓòÉΓòÉΓòÉ

Select a file name to save the currently displayed image.

The list boxes in the left column display the drives and the directories in the
current path, and the list box in the right column displays the files in the
current path.


ΓòÉΓòÉΓòÉ 5.1.3. Save All Options ΓòÉΓòÉΓòÉ

This will save all the PMJPEG options to a file named "pmjpeg.sav" in the same
directory as the PMJPEG executable.  When PMJPEG is initially loaded, the
options will be loaded if "pmjpeg.sav" exists.


ΓòÉΓòÉΓòÉ 5.1.4. Delete ΓòÉΓòÉΓòÉ

This menu command lets you delete the file containing the currently displayed
image.  PMJPEG will prompt you for confirmation before deleting the file.


ΓòÉΓòÉΓòÉ 5.1.5. Batch Compression ΓòÉΓòÉΓòÉ

Select GIF, TIFF, and TARGA files to compress to JPEG format with the options
specified in the JPEG Options dialog.  The list boxes in the left column
display the drives and the directories in the current path, the list box in the
middle displays the files in the current path, and the one in the right
displays a list of files to be converted.  To add file(s) to the "Files
Selected" box, select the file(s) you want to convert and press the "Add"
button.  To remove file(s) from this box, select the file(s) in this box and
press the "Remove" button.

The output file(s) will have the same name as the input file(s) except that
they will have a ".jpg" extension.  Also, the output file(s) will be placed in
the same directory path in which the input file(s) were located.

See also JPEG Options.


ΓòÉΓòÉΓòÉ 5.1.6. Slideshow ΓòÉΓòÉΓòÉ

Select the JPEG, TIFF, GIF, Targa, and BMP files to display in a slideshow.
The order in which you add the files will be the order in which they are
displayed.

After a picture is loaded and displayed, if Automatic Slide Advancement is
selected, there will be a user-selected delay before the next picture is
loaded.  To advance to the next picture before the delay has elapsed, click on
the window with the right mouse button.  If Manual Slide Advancement is
selected, PMJPEG will wait until you click with the right mouse button before
advancing to the next picture.

If you would like the slideshow to continue from the beginning of the list
after the last picture is displayed, check off the Cycle Slideshow menu option.

To abort the slideshow, click on the window with the left mouse button, click
on the "Yes" button in the confirmation dialog, and the slideshow will stop
after the currently loading picture is displayed.

See also Slideshow Options.


ΓòÉΓòÉΓòÉ 5.1.7. Exit ΓòÉΓòÉΓòÉ

Exit from PMJPEG.


ΓòÉΓòÉΓòÉ 5.2. Edit Menu ΓòÉΓòÉΓòÉ

The Edit menu includes commands that enable you to transfer images to and from
the clipboard, change the color components of an image, and to manipulate the
image.

o Copy
o Paste
o Crop
o HSV Adjustment
o Color Balance
o Contrast Enhancement
o Grayscale
o Grayscale
o Rotate
o Flip Horizontal
o Flip Vertical
o Resize


ΓòÉΓòÉΓòÉ 5.2.1. Copy ΓòÉΓòÉΓòÉ

Copy the entire image to the clipboard.


ΓòÉΓòÉΓòÉ 5.2.2. Paste ΓòÉΓòÉΓòÉ

Paste an image from the clipboard.


ΓòÉΓòÉΓòÉ 5.2.3. Crop ΓòÉΓòÉΓòÉ

If a region of the image is selected (see Selecting a Region to Crop), keep
that region and discard the image outside of the selected region.


ΓòÉΓòÉΓòÉ 5.2.4. HSV Adjustment ΓòÉΓòÉΓòÉ

Use the scroll bars to adjust the amount of hue, saturation, and
value/brightness in an image.  A value of 0 on the scroll bar means that there
is no change in the corresponding color component. When the value is increased
or decreased, the color component is increased or decreased, respectively.


ΓòÉΓòÉΓòÉ 5.2.5. Color Balance ΓòÉΓòÉΓòÉ

Use the scroll bars to adjust the amount of red, green, and blue in an image.
A value of 0 on the scroll bar means that there is no change in the
corresponding color component.  When the value is increased or decreased, the
color component is increased or decreased, respectively.


ΓòÉΓòÉΓòÉ 5.2.6. Contrast Enhancement ΓòÉΓòÉΓòÉ

Use the scroll bar to adjust the amount of contrast in an image.  A value of 0
on the scroll bar means that there is no change in the contrast.  When the
value is increased or decreased, the contrast is increased or decreased,
respectively.


ΓòÉΓòÉΓòÉ 5.2.7. Grayscale ΓòÉΓòÉΓòÉ

Convert a color image into a grayscale one.


ΓòÉΓòÉΓòÉ 5.2.8. Map To System Colors ΓòÉΓòÉΓòÉ

Converts the displayed image to an image that has a 256-color palette
containing the system colors of the OS/2 desktop.  Use this option to generate
an image that can be used as a 256-color OS/2 desktop-background image.


ΓòÉΓòÉΓòÉ 5.2.9. Rotate ΓòÉΓòÉΓòÉ

Rotate the image clockwise by 90 degrees.


ΓòÉΓòÉΓòÉ 5.2.10. Flip Horizontal ΓòÉΓòÉΓòÉ

Flip the image around the vertical axis.


ΓòÉΓòÉΓòÉ 5.2.11. Flip Vertical ΓòÉΓòÉΓòÉ

Flip the image around the horizontal axis.


ΓòÉΓòÉΓòÉ 5.2.12. Resize ΓòÉΓòÉΓòÉ

Change the spatial resolution of the displayed image.  Common sizes such as
640x680, 800x600, 1024x768, and 1280x1024 can be easily selected.

The Maximize Fit on Desktop option will resize the image into the largest
possible window that will fit on the desktop while keeping the aspect ratio,
the ratio between the original width and height.

Also, a custom size can be manually entered.  If Keep Aspect Ratio is enabled,
only one dimension needs to be entered because the other one is automatically
changed to maintain the aspect ratio.


ΓòÉΓòÉΓòÉ 5.3. Options Menu ΓòÉΓòÉΓòÉ

The Options menu includes commands that let you determine how other commands
operate. The settings for the options can be saved with the Save All Options
command.

o 8-bit Bitmap
o Display Old Image during Load
o Move Window after Load
o Auto-Refresh
o JPEG Options
o Slideshow Options


ΓòÉΓòÉΓòÉ 5.3.1. 8-bit Bitmap ΓòÉΓòÉΓòÉ

When you load a JPEG, 24-bit TIFF, 24-bit Targa, or 24-bit BMP image with this
menu item checked, PMJPEG will quantize the number of colors to 256 before
displaying the image.  If this menu item is unchecked, the image will be loaded
into a 24-bit bitmap with no quantization.


ΓòÉΓòÉΓòÉ 5.3.2. Display Old Image during Load ΓòÉΓòÉΓòÉ

If this option is checked, you can continue viewing the currently displayed
image while another image is being loaded.  However, this option will use more
memory because PMJPEG has to maintain two images.  Consequently, it may slow
down the loading of the next image if PMJPEG runs out of physical memory and
must use slower virtual memory.


ΓòÉΓòÉΓòÉ 5.3.3. Move Image after Load ΓòÉΓòÉΓòÉ

If this option is checked, the PMJPEG window is moved to the upper left-hand
corner of the desktop after an image is loaded.


ΓòÉΓòÉΓòÉ 5.3.4. Auto-Refresh ΓòÉΓòÉΓòÉ

The purpose of this option is to provide a temporary solution to a bug in the
256 color drivers.  This bug is evident when the area of the image under a
drop-down menu or under a dialog box is not properly redrawn after the
drop-down menu or the dialog, respectively, is closed.

If this menu item is checked, PMJPEG will automatically refresh the image when
it is necessary.


ΓòÉΓòÉΓòÉ 5.3.5. JPEG Options ΓòÉΓòÉΓòÉ

2-pass(Heckbert) quantization produces better looking output than 1-pass
quantization and it is slower.  Also, 2-pass quantization uses more memory so
it may be even slower because PMJPEG will swap to hard disk when it runs out of
virtual memory.  The output of 1-pass generally looks more grainy.

Dithering uses available colors in a palette to simulate additional colors.
The dithering method that PMJPEG uses is called Floyd-Steinberg Dithering.
Dithering is useful when quantizing to 256 colors or less but it is not needed
for a true-color (24-bit) display.  You may want to turn off dithering since it
sometimes causes a grainy output image.

The Quality Factor, an integer between 0 and 100 inclusive, determines the
tradeoff between the output file size and the output image quality.  If you
choose a high quality factor, the image quality will be high but the file size
will be large.  A lower quality setting will yield a smaller file at a cost of
lower fidelity.  Since the JPEG algorithm is lossy, a quality factor of 100
will not give you a losslessly compressed image.

The Smoothing Factor, also an integer between 0 and 100 inclusive, determines
the degree of smoothing to apply to an image before compressing that image with
JPEG.  The higher you set the factor, the higher the degree of smoothing that
is applied.  A smoothing factor of 0 means that no smoothing is performed.
Smoothing removes noise introduced when an image is dithered, and, in turn,
smoothing produces a smaller JPEG file.  It should be used for only dithered
images, like photographic GIF pictures.  Generally, a factor between 10 and 50
removes the dithering noise from an image.

Entropy Optimization produces a smaller JPEG file but it takes more time to
encode the image.

If PMJPEG runs out of virtual memory while it is decoding/encoding JPEG files,
it will use temporary files that are created in the specified path.


ΓòÉΓòÉΓòÉ 5.3.6. Slideshow Options ΓòÉΓòÉΓòÉ

When a slideshow is running, the Cycle Slideshow option determines whether or
not a list of images are continuously displayed in a cycle.  If this option is
on, the slideshow returns back to the first picture after the last one is
displayed and continues to display all the images in a selected list until you
abort the slideshow.

The Slide Advancement options determine how to advance to the next image in a
slideshow.  In Manual mode, PMJPEG will wait until you click with the right
mouse button before advancing to the next picture.  In Automatic mode, there
will be a user-selected time delay before the next picture is loaded.  To
advance to the next picture before the delay has elapsed, click on the window
with the right mouse button.  The Delay can be set to a value between 0 and 999
seconds.

The Buffer Image Formats options allow buffering of selected image formats
during a cyclic slideshow.  If a type is selected, all images of that type are
stored in memory after they are loaded and decompressed, and they will not be
loaded/decompressed the next time they are displayed.  This feature must be
used in conjunction with the Cycle Slideshow option.  Buffering images can use
a lot of memory; if you don't have much physical memory, be certain that there
is enough disk space on OS/2's swap drive to handle this memory usage.


ΓòÉΓòÉΓòÉ 5.3.7. Progress Options ΓòÉΓòÉΓòÉ

For time-consuming tasks like loading, saving, batch compressing, and mapping
to system colors, PMJPEG displays a percentage that indicates how much of the
task has been completed.  The progress can be displayed in either a dialog box
or the title bar of the PMJPEG window.


ΓòÉΓòÉΓòÉ 6. Selecting a Region to Crop ΓòÉΓòÉΓòÉ

To select a region of the image, click on the image with the left mouse button.
While holding down that button, move your mouse until the rectangle surrounds
the desired region, and then release the mouse button.  The dimensions of the
selected region are displayed in the center of the indicated region.


ΓòÉΓòÉΓòÉ 7. How to Register ΓòÉΓòÉΓòÉ

If you use PMJPEG for more than 14 days, you are expected to register PMJPEG.
When you register, you will receive the latest version of PMJPEG, a user
manual, and a collection of JPEG images (we will put as many as we can fit on 2
720k 3 1/2" floppies, on 1 1.44M  3 1/2" floppy, or on 4 360k 5 1/4" floppies).
Also, the registered version does not have the reminder-to-register screen at
the start.

The registration fee is only $20.  MA residents, add 5% sales tax to the
registration fee.  US residents, add $3 for shipping and handling; non-US
residents, add $8 for shipping and handling.  If you want PMJPEG e-mailed to
your account instead of having it physically mailed to you, there is no extra
shipping charge.

Updates are free but the shipping charge described above applies to updates.
Users who register PMJPEG and provide an e-mail address will automatically
receive updates via e-mail.

For e-mail registrations, you need to use a program called "uudecode" to decode
the uuencoded file that we e-mail to you.  For your information, a uuencoded
file is a binary file that is converted to text by a program called "uuencode".
If your mail system rejects large messages, we will split the uuencoded file
into smaller parts before mailing the parts to you, and you will need to edit
the messages with a text editor before you can decode them.  Compuserve, for
example, does not permit large e-mail messages.  Also, the uuencoded file is
rather large; it is approximately 300k for PMJPEG v.1.3.  Compuserve users may
find it less expensive to receive PMJPEG via U.S. Mail.

Registrations with the incorrect fee or with non-US currency will be returned.

To register, complete the order form and send a check in US funds to:

   Norman Yee
   58 Chandler St.
   Boston, MA 02116

Registration of PMJPEG is based on "personal usage."  Corporate or
organizational users must register all copies used on an individual basis; a
specific person (name) must be explicitly assigned to each registrant who will
be provided with a personalized copy of PMJPEG. Registration grants a specific
person (not an organization or corporate entity) the right to use PMJPEG.

Although we will try to mail your copy of PMJPEG 1-3 weeks after we receive
your registration, please allow up to 4-6 weeks for delivery.


ΓòÉΓòÉΓòÉ 8. Reporting Bugs ΓòÉΓòÉΓòÉ

If you find a bug in PMJPEG, we would appreciate it if you would inform us of
the bug through one of our e-mail accounts:

  Norman Yee
  [e-mail]

  Ken Yee
  [e-mail]

When you send us a bug report, include a description of the procedure for
reproducing the bug and a description of your system configuration(hardware and
software).


ΓòÉΓòÉΓòÉ 9. License Agreement (applicable to registered users) ΓòÉΓòÉΓòÉ

You are licensed to single-copy use of PMJPEG; this means that you can install
your registered version of PMJPEG simultaneously on one computer at work, one
computer at home, and one portable computer, if only one copy is in use by the
registered individual at a time.  You may make copies of the registered PMJPEG
disk as necessary for normal backup purposes; you agree not to make any copies
of the printed PMJPEG manual or the registered version of PMJPEG for others.


ΓòÉΓòÉΓòÉ 10. Disclaimer ΓòÉΓòÉΓòÉ

The authors of this program accept no responsibility for damages that are
caused by this program and make NO WARRANTY or representation, either express
or implied, with respect to this software.  This software is provided "AS IS,"
and you, its user, assume the entire risk when you use it.


ΓòÉΓòÉΓòÉ 11. Acknowledgments ΓòÉΓòÉΓòÉ

PMJPEG is based in part on the work of the Independent JPEG Group.

TIFF support in PMJPEG is based in part on Sam Leffler's TIFF library.

System Color Mapping is based in part on the PBMPLUS library.

Windows is a trademark of Microsoft Corporation.

OS/2 is a trademark of International Business Machines Corporation.

The Graphics Interchange Format(c) is the Copyright property of CompuServe
Incorporated.  GIF(sm) is a Service Mark property of CompuServe Incorporated.

GIF2JPG and Image Alchemy are trademarks of Handmade Software, Inc.

WinJPEG is copyright (C) 1992, 1993, Norman Yee and Ken Yee.  All rights
reserved.

PMJPEG is copyright (C) 1993, Norman Yee and Ken Yee.  All rights reserved.

o Copyright Notice for Sam Leffler's TIFF Library
o Copyright Notice for PBMPLUS Library


ΓòÉΓòÉΓòÉ 11.1. Copyright Notice for Sam Leffler's TIFF Library ΓòÉΓòÉΓòÉ

Copyright (c) 1988, 1989, 1990, 1991, 1992 Sam Leffler

Copyright (c) 1991, 1992 Silicon Graphics, Inc.

Permission to use, copy, modify, distribute, and sell this software and  its
documentation for any purpose is hereby granted without fee, provided that (i)
the above copyright notices and this permission notice appear in all copies of
the software and related documentation, and (ii) the names of Sam Leffler and
Silicon Graphics may not be used in any advertising or publicity relating to
the software without the specific, prior written permission of Sam Leffler and
Silicon Graphics.


ΓòÉΓòÉΓòÉ 11.2. Copyright Notice for PBMPLUS ΓòÉΓòÉΓòÉ

Copyright (C) 1991 by Bill Davidson and Jef Poskanzer.

Permission to use, copy, modify, and distribute this software and its
documentation for any purpose and without fee is hereby granted, provided that
the above copyright notice appear in all copies and that both that copyright
notice and this permission notice appear in supporting documentation.  This
software is provided "as is" without express or implied warranty.