Each social-media profile lets you use images to convey your personal (or professional) brand. Unfortunately, not every Web site allows you to use the same size photos. In the end, you'll have some social-media profiles with images that look stretched or squished. Instead of fussing with images to make them look proper, try using the Social Media Image Maker.
The great thing about this site is that it's easy to use, and can make your social media profiles look much more professional (or at least like you know what you're doing to friends and family). You won't need any editing skills, because the site does all the work for you.
Social Media Image Maker supports the following Web sites: Twitter, YouTube, Google+, Flickr, Vimeo, Pinterest, Skype, Tumblr, Linkedin, Gravatar, Xing, Viadeo, Slideshares, Foursquare, and About.me.
When you open the Social media Image Maker Web site, you won't need to register to get started -- yay! Just click on the service you want to edit images for, and then choose the image size you need. This example shows the Facebook Cover image being cropped.
After you're done cropping, you can choose to rotate, or even add a filter by pressing on the sparkling icon along the top of the Web site. The filters are very similar to what you'll find in apps like Instagram or Pixlr Express.