Thank you Vero.
Thank you Vítor.
You are right, I should think a little bit more to figure out what would be the exact process I would like. Plus, I am not sure I will use it often.
Actually, when I want to communicate with a software developer team or a forum to ask help (and Internet languages, etc.) I use to describe the issue with words and images. Good feedbacks require this often, isn't it ?
If I communicate with the team by email, it's easy. I type, capture portions of the screen to illustrate the steps one by one if necessary, paste them in the e-mail, continue to type, etc. If I want to annotate the images, I use Skitch or Apple Preview.app. Until all the steps to reproduce the issue are described and illustrated. Cool.
But… when I have to do this on a web forum… that's no small matter ! See what I mean ? Sometimes I keep the same process than by e-mail. I use Word or Evernote, or whatever and when the whole explanation seems comprehensible, I copy the text, paste it to a new topic in the web forum, then copy images one by one (or capture them once again) and upload them to an online image sharing web service. Imgur is smart because it spares us to create the image files locally.
You know, it is not that I do this every day. And today, I have found this app: img.urls on the Mac app store Very neat.