I need approx 25 photos that I have scanned at 400 dpi put into multiple a4 sized landscape document in photoshop and exported as individual tiff files. I will be printing the photos onto a4 sized paper. The document needs to be at least 300 dpi. Some photos also need some brightness / contrast work done. Currently multiple photos have been scanned onto approx 4 x files (they were scanned at a3 size).