Aspose PSD Merger is a free web app to combine multiple PSD files without using Photoshop.
If you were wondering 'How to merge a few PSD files to one' or 'How do I get several combined images fast and without using Photoshop' this free app it's that what you need.
Combine your images by type Overlay, Horizontal, or Vertical and get results as PSD, PDF, PNG, BMP, JPEG, JPEG 2000, TIFF, GIF.
* Please note, It's not official Adobe® Photoshop® Merger Online App. It's third party App that made with Aspose.PSD and it doesn't use Photoshop® API or any Adobe® technologies