Adding a drop shadow to the image
Be sure that Colorize is checked, the settings are Hue: 43, Saturation: 28, and Lightness: +16. Of course, you can adjust these settings as you see fit for your application. Now the old paper image looks a bit lighter than the original, and not quite as aged; I also toggle the Hue/saturation layer off and on to compare the difference.
Next, I am going to add a new layer with some drop shadow to the image, following the menu path Layer | Layer Style | Drop Shadow with the following settings -- Blend Mode: Multiply, Opacity: 65%, Angle: 120°, Distance: 5px, Spread: 2%, and Size: 5px, as shown.
Selena has been at TechRepublic since 2002. She is currently a Senior Editor with a background in technical writing, editing, and research. She edits Data Center, Linux and Open Source, Apple in the Enterprise, The Enterprise Cloud, Web Designer, and IT Security blogs.