Many companies use this software for editing photos.
I use this for our company work and this works perfectly for image editing process.
GIMP - GIMP is a multiplatform photo manipulation tool.
ViralSweep - Grow your fans and increase sales with sweepstakes and giveaways.
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
Retweet Picker - Retweet Picker is an online tool that is helping you to select the random winner from Twitter for the giveaways.
Krita - Krita is a professional FREE and open source painting program. It is made by artists that want to seaffordable art tools for everyone. Concept art. texture and matte painters, illustrations and comics.
KingSumo - Grow your audience with viral giveaways that cut marketing costs