File contains:
Photoshop main file, containing 20 natural paper texture backgrounds, with self adjustable gradient layer. File is 300dpi, so it can also be used for print purposes.
20 2560×1600px jpg backgrounds.
20 web ready 1024×1024px and 512×512px seamless jpg patterns. The same pattern but two sized variants, with large and smaller detail.
Photoshop .PAT file with all 20 patterns. Patterns are 1024×1024px. If you want to use the smaller 512×512px size in Photoshop, set pattern size to 50%. This will probably be more useful for web purposes.