Purchase the program
Be sure to try the free demonstration version before you buy.
The program is subject to my standard product disclaimer.
To view the disclaimer
Purchasing the program indicates that you have read and accept these conditions.
The program is
Please pay by credit card or check using PayPal.
I will e-mail the program to you after the transaction has cleared.
Please allow several days for this to happen.
If you do not want to use PayPal
please e-mail to make other arrangements
I believe that when you buy software you
should be able to get any subsequent upgrades to it for free
and that has always been my policy with this program.
Any customer who has purchased the program since it was first introduced in 1999
can upgrade to the current version for free
as long as they agree to the conditions in the disclaimer.
I withhold the right to change this policy in the future
but it is my current intention to continue it indefinitely.
If you have any questions please e-mail me
Thank you for purchasing the Swezey
Digital Filter Program!
Your support helps me recover significant development costs and continue my work in this area.
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(c) 1999-2012, Thomas F. Swezey. All rights reserved.