Open or create a Photoshop file. To do so, double-click on the blue app icon that contains the letters "Ps," then click on File in the menu bar at the top of the screen. Click New.
Click on the layer you want to mask. The layers window is in the lower-right part of the app.
Select the area you wish to remain visible. You can use Marquee Tool to select a larger area that doesn't require fine edges.Or, Pen Tool to outline the edges of a finer shape, like individual flower petals.
Click on the "Add Layer Mask" icon.If you used a Pen Tool to draw the selection, click on the icon one more time, after the label changes to "Add Vector Mask."
Save your changes. To do so, click on File in the menu bar, then Save in the drop-down.
Layer Mask *Layer masks are a fundamental tool in image manipulations.They allow you to selectively modify the opacity (transparency) of the layer they belong to.This differs from the use of the layer Opacity slider as a mask has the ability to selectively modify the opacity of different areas across a single layer.
*This modification of a layer’s transparency through a mask is non-destructive to the layer itself.
*This flexibility to define the opacity of different areas of a layer is the basis for more interesting image manipulation techniques such as selective coloring and luminosity masking. *Working with Layer Mask is not easy, you need to be careful on using it.
*You can use this in your future if you want to be an entrepreneur you can use this for your own brochure/flyer.