How to Clip a Lower Layer to an Upper Layer's Frame in Photoshop

To clip the lower layer to the upper layer photo's frame in Photoshop, follow these steps:

1. Open both the upper layer photo and the lower layer in Photoshop.
2. Make sure the lower layer is positioned below the upper layer in the Layers panel.
3. Click on the upper layer to select it.
4. Select the Rectangular Marquee Tool from the toolbar on the left or press the M key.
5. Use the Marquee Tool to create a selection around the frame of the upper layer photo. Make sure the selection covers the entire frame.
6. With the selection still active, go to the Edit menu and choose 'Copy Merged' or press Shift+Ctrl+C (Windows) or Shift+Command+C (Mac) to copy the entire image, including the selection.
7. Now, click on the lower layer in the Layers panel to select it.
8. Go to the Edit menu and choose 'Paste' or press Ctrl+V (Windows) or Command+V (Mac) to paste the copied image onto the lower layer.
9. The pasted image should now be clipped to the frame of the upper layer photo.
10. You can adjust the position and size of the pasted image by using the Move Tool (V) or by transforming it using the Edit > Free Transform command (Ctrl+T or Command+T).

That's it! The lower layer is now clipped to the upper layer photo's frame in Photoshop.