In Photoshop, open the images you want to work with. The Timeline window should now be open. Create a new layer for each each frame by clicking “Create Frame Animation” in the Timeline box. Choose “Make Frames From Layers” from the same menu item on the right, and then pick how long each frame should appear before shifting to the next frame. Select the number of times you want it to loop at the bottom of the toolbar. Press the play icon to see a preview of your GIF. You can now save and export your GIF.