A plethora of software tools exist in the realm of shareware or freeware. Shareware is usually software that you can download and use freely, but you are obligated to pay a nominal fee to the author. Freeware is just that - free. Many software packages are available in a trial form so that you can download the software, try it out and then buy it if you like it. These packages are usually hobbled in some way.
Sources are for illustration only.
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