My company has automated checkwriting and checkprinting with PrintBoss for the last 2 years. We have had no issues and whenever we need assistance for any reason, their service people have been responsive and helpful. We would recommend PrintBoss.
XnView MP stands for Multi Platform = it is available for Windows, Linux and MacOS. It is a continuation of the older XnView Classic. In my opinion it is a great alternative to Windows photos app or any Linux image viewer that comes preinstalled. I even think it is an alternative to IrfanView. It is really fast and simple to use, supports more than 500 image formats, has built in folder browser, image converter, editor... AND MORE!
Online Check Writer - Online Check Writer is an all-in-one financial service provider with all kinds of payment options to pay and get paid.
IrfanView - IrfanView ... one of the most popular viewers worldwide.
Checkeeper - *Have your own check stock? Awesome, Checkeeper will work with virtually any type!
FastStone Image Viewer - FastStone Image Viewer is a fast, stable, user-friendly image browser, converter and editor.
CheckSoft - Check printing software
JPEGView - JPEGView is a small and fast viewer/editor for JPEG, BMP, PNG, GIF and TIFF images.