From CreativePro.com –Creating a Postcard in Photoshop:
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The Project: to make a fun postcard image from a beach vacation in the iconic “large letter” style of Curt Teich. You can learn more about Curt Teich in Greetings From Big Letters, USA, and explore the enormous digital archive of his postcards at Newberry.org. Here’s a sneak peek of what we’re making. Along the way we’ll see how to use several important Photoshop features for improving your photos, including content-aware crop and move, straighten, and the Patch tool. Using Content-Aware Crop and Straighten To begin, I have a photo I want to use as the background. It needs to be cropped to my postcard size and straightened. In CC 2017, you can take advantage of a Content-Aware option fill in any blank spots created while cropping. In the Options bar, I set the size of my image and make sure that Content-Aware is selected. To straighten my image, I use the Straighten button in the Options bar. I simply drag a line along the horizon to level it out. Since I’m taking advantage of Content-Aware crop to fill in parts of the sky, I can extend my crop area outside the boundaries of my image. Here is the result…”
