@xahodo ,
From the xv manual
xv Licensing Information
xv is shareware for personal use only.
You may use xv for your own amusement, and if you find it nifty, useful, generally cool, or of some value to you, your
registration fee would be greatly appreciated. $25 is the standard registration fee, though of course, larger amounts
are quite welcome. Folks who donate $40 or more can receive a printed, bound copy of the xv manual for no extra
charge. If you want one, just ask. Be sure to specify the version of xv that you are using!
Commercial, government, and institutional users must register their copies of xv.
This does not mean that you are required to register xv just because you play with it on the workstation in your office.
This falls under the heading of ‘personal use’. If you are a systems administrator, you can put xv up in a public
directory for your users’ amusement. Again, ‘personal use’, albeit plural.
On the other hand, if you use xv in the course of doing your work, whatever your ‘work’ may happen to be, you must
register your copy of xv. (Note: If you are a student, and you use xv to do classwork or research, you should get your
professor/teacher/advisor to purchase an appropriate number of copies.)
xv licenses are $25 each. You should purchase one license per workstation, or one per xv user, whichever is the
smaller number. xv is not sold on a ‘number of concurrent users’ basis. If xv was some $1000 program, yes, that
would be a reasonable request, but at $25, it’s not. Also, given that xv is completely unlocked, there is no way to
enforce any ‘number of concurrent users’ limits, so it isn’t sold that way.
Printed and bound copies of the 120-ish page xv manual are available for $15 each. Note that manuals are only sold
with, at minimum, an equal number of licenses. (e.g. if you purchase 5 licenses, you can also purchase up to 5
copies of the manual)
The source code to the program can be had (as a compressed ‘tar’ file split over a couple 3.5” MS-DOS formatted
floppies) for $15, for those who don’t have ftp capabilities.
Orders outside the US and Canada must add an additional $5 per manual ordered to cover the additional shipping
charges.
Checks, money orders, and purchase orders are accepted. Credit cards are not. All forms of payment must be
payable in US Funds. Checks must be payable through a US bank (or a US branch of a non-US bank). Purchase
orders for less than $50, while still accepted, are not encouraged.
All payments should be payable to ‘John Bradley’, and mailed to:
John Bradley
1053 Floyd Terrace
Bryn Mawr, PA 19010
USA
Site Licenses
If you are planning to purchase 10 or more licenses, site licenses are available, at a substantial discount. Site licenses
let you run xv on any and all computing equipment at the site, for any purpose whatsoever. The site license covers
the current version of xv, and any versions released within one year of the licensing date. You are also allowed to
duplicate and distribute an unlimited number of copies of the xv manual, but only for use within the site. Covered
versions of the software may be run in perpetuity.
Also, it should be noted that a ‘site’ can be defined as anything you’d like. It can be a physical location (a room,
building, location, etc.), an organization (a workgroup, department, division, etc.) or any other logical grouping (“the
seventeen technical writers scattered about our company”, etc.).
The site license cost will be based on your estimate of the number of xv users or workstations at your site, whichever
is the smaller number.
If you are interested in obtaining a site license, please contact the author via electronic mail or FAX (see below for
details). Send information regarding your site (the name or definition of the ‘site’, a physical address, a fax number,
and an estimate of the number of users or workstations), and we’ll get a site license out to you for your examination.
Copyright Notice
xv is Copyright 1989, 1994 by John Bradley
Permission to copy and distribute xv in its entirety, for non-commercial purposes, is hereby granted without fee,
provided that this license information and copyright notice appear in all copies.
If you redistribute xv, the entire contents of this distribution must be distributed, including the README, and
INSTALL files, the sources, and the complete contents of the ‘docs’ directory.
Note that distributing xv ‘bundled’ with any commercial product is considered to be a ‘commercial purpose’.
Also note that any copies of xv that are distributed must be built and/or configured to be in their ‘unregistered copy’
mode, so that it is made obvious to the user that xv is shareware, and that they should consider registering, or at least
reading this information.
The software may be modified for your own purposes, but modified versions may not be distributed without prior
consent of the author.
This software is provided ‘as-is’, without any express or implied warranty. In no event will the author be held liable
for any damages arising from the use of this software.
If you would like to do something with xv that this copyright prohibits (such as distributing it with a commercial
product, using portions of the source in some other program, distributing registered copies, etc.), please contact the
author (preferably via email). Arrangements can probably be worked out.
The author may be contacted via:
US Mail: John Bradley
1053 Floyd Terrace
Bryn Mawr, PA 19010
FAX:
(610) 520-2042
Electronic Mail regarding xv should be sent to one of these three addresses:
xv@devo.dccs.upenn.edu
xvbiz@devo.dccs.upenn.edu
xvtech@devo.dccs.upenn.edu
- general xv questions
- all xv licensing questions
- bug reports, technical questions
Also from the README file
Also, the file 'penn.policy' contains relevant information on Penn's
software policy. Since it is well-known that I work for Penn (and there's
this Penn Shield in the info box, and whatnot), some folks have questioned
whether I have the legal right to sell this software. Needless to say,
I do. (In summary, "software developed by Penn folks is the property of
the software author. Penn has no interest in it other than rights to use
it, and a non-exclusive right to market.") Please check the policy if this
concerns you.
--jhb, 12/5/94
Penn refers to University of Pennsylvania
There is no LICENCE file, and no headers on the software files.
The display command is a standard Linux command in the ImageMagick package. It’s a simple image viewer. I’m just calling it from PHP.
