How to Merge Two Photos Together With Photoshop

Steps

1. 1
   Select the images for your composition.
   
   
   
2. 2
   Open a new Photoshop document and assign the desired dimensions. For this tutorial, create a document 35x20cm in size using 72dpi (Or whatever the best size for your images) with a white background.
   
   
   
3. 3
   Import the photos to the new document. By doing this you will get 3 different levels: one for the background and one for each image. If you want to reduce or to increase the dimension of one of the images, you can select the level of the chosen image and pressCommand+T (Ctrl+T for Windows) to Free Transform.
   
   
   
4. 4
   Once the dimensions are set up, you have to cancel the image part you don't need. In order to do this select the Eraser tool from the Tool Box and set up the size to 145px and the Hardiness to 15%. Set the Opacity to 30% so the Eraser tool will be less effective and easier to use.
   
   
   
   • To be sure to correctly cancel the parts, you can also set up the level in mode toMultiply. This way the level becomes semi-transparent and allows you to see what you have done in the level behind.
     
     
     
5. 5
   Once you have done that you can now cancel the parts that are unnecessary.
   
   
   
6. 6
   Control the result of your operation by bringing back the level to Normal mode. To cancel the parts near the merging area of images, modify the settings of the Eraser tool to 30px for size, 100% for opacity, and 40% for hardness.
   
   
   
7. 7
   Select the Brush tool from the tool box, set up the size to 100px, hardness 20% and opacity to 30% using color which best matches with your images. Working with these settings will be simpler to fix the job. With this paint-brush selected we are going to fill the part of the left background with matching color to give it more neat finish.
   
   
   
8. 8
   To work in smaller areas, you should reduce the size of the brush. Just right click with the mouse and choose a smaller size. Once you have removed the area around the bars, you’ll get this result: