Getting your player ready...
If the photos you post to your Flickr account still have room for improvement, you can perform basic image-editing chores such as cropping and adjusting exposure right on the site.
To edit a photo already uploaded to Flickr, click its thumbnail on your photostream page. When the picture appears on its own page, click the Actions menu in the upper left corner and choose “Edit photo in Picnik.”
Once you are in Picnik mode, you can use the on-screen tools to adjust photos, apply special effects, add caption text and more. While Picnik does offer a premium service that costs money, many of the standard features are free to Flickr users.
