Does Photoday allow TIF? Most online labs only let you use PNG. Not sure about Photo Day though.
Yes, to save s TIF with a sinlge layer you can use Hot Folder with an action Just make the action to do 2 steps. Then run Hot Folder and have it save TIF.
You can also use Hot Folder to save as PNG without running an action in Hot Folder. Savimg as PNG will automatically merge into a single layer when saving because PNG doesn’t support layer. So you don’t need to merge it.
Action Steps For merging to single layer-
1. Delete Hidden Layers – In the layer panel, clivk the dropdown menu from the upper right corener on the 3 dasjed lines. Then se;lect Delete hidden layers.
2. Merge Visible – – In the Photoshop menu select Merge > Visible