Adobe Capture is a great tool to use in your creative arsenal. In this case, we're going to use the Shapes feature to capture a logo element that we'll use for our Adobe Portfolio.
First, you'll want to download Adobe Capture in the Apple App Store or Google Play store. When you first open it, you'll log in with your AdobeID and then tap the "Shapes" area of the header.
Once you're in Shapes, click the + button. This will open your camera and you'll see that the image you're capturing has a green line around it. The green sections are what the app will capture and convert into a smoothed out file that you can edit or use later. At this stage, you can move the slider at the bottom to increase or decrease the gain or sensitivity--this will either add or remove green from the image.
Once you have your image captured you can swipe the image to add or remove areas from the final image.
Next, the app will "write" a smoothed version of the image that you can then use.
Once it's done, you can click into the image in your library and then Share the image. At this time, your image is ALSO available in the Creative Cloud section of any of the desktop apps, so you could either email yourself the finished product from the app OR continue editing in Photoshop or Illustrator. For our purposes, we're going to open our file in Photoshop and then save it as a PNG image.
When you open Photoshop, create a new document (preferably with a transparent background, but that's up to you) and then find the Creative Cloud Libraries menu.
When this pops open, you can click and drag your Capture file into your new document. Edit the image as you see fit and when you're done, click "Save As" and save the file as a PNG image.
When the image is saved out, visit your Portfolio and click the Edit button next to your logo and choose Customize. From there, you can upload your new logo image by clicking into the Image tab and then uploading an image.
To learn more about Adobe Capture, visit: http://www.adobe.com/products/capture.html