To combine photos in Photoshop open your first image then got file>place and select your second image. You can then resize or move the placed image. You can change the oppacity by clicking on the layer you want and moving the oppacity down.
you can combine by creating masks or blending options,you need tutorial for doing such thing
By using photoshop of course
When you show your products photos to your customers and need to edit them, you will use adobe photoshop.
Photoshop is still recommendable for editing photos.
black and white photos are in style now and is effective
photoshop
First save photos on hard drive, right click on photo then choose Save or Save As, then open it Photoshop throught File - Open
Photoshop it. You need 2 photos: yours and Justin's. You need a .png of Justin. You can find Justin's png photos in the internet and you can use them. Then you put it into your photo and combine, you can delete some parts or change so the photo looks realistic. Done. I don't know if there is a specific site. But photoshop is the most professional way to do this.
There are several features of the Corel Photoshop software. Some of the biggest features of the Corel Photoshop software is the ability to edit photos.
A photo editing software. It is consumer version of Adobe Photoshop and have most of Photoshop features. Elements costs 1/6 of Photoshop price.
Picnik Photoshop Pizap befunky
Adobe Light Room is an extension of Adobe Photoshop, which allows you to professionally edit your digital photos. With Ligthroom you get some advanced tools in Photoshop to make your photos striking.