Many companies use this software for editing photos.
I use this for our company work and this works perfectly for image editing process.
Privatter - Privatter is the easy way to share long texts and pictures set limit on your followers. You can post them by Sign in with Twitter account to this site.
GIMP - GIMP is a multiplatform photo manipulation tool.
Twishort - Twishort is a best Twitter app for writing longer tweets. Tweet more than 140 characters
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
TwitLonger - TwitLonger is the easy way to post more than 140 characters to Twitter
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.