If you have two monitors and want to have a unique wallpaper in each one, we can help you. In this step by step guide, we will show you the two existing options to change your old single wallpaper into a dual monitor one: the manual and the automated. This process is a lot easier in Windows 8 and Windows 10 version, leaving Windows 7 behind in this particular department, and making the user to do more steps to accomplish the same labor.
Merging two wallpapers into one: The manual option.
Since Windows 7 wallpaper changer is a little bit limited, we will need to resort to other tools to accomplish our mission. In this option, we will need an Image Editor to merge two wallpapers into one and use it as our dual monitor wallpaper. You can use the image editor of your preference. For this guide we will use Photoshop, but you can use any: Corel, GIMP, Photoshop, Paint.net, etc. We don’t recommend the Microsoft Paint because is limited in its options and the result will not be optimal.
Step one: Setting your monitors.
For this task, you will need to learn both monitors’ resolution. You can do this by right-clicking on your actual desktop wallpaper and choosing Screen Resolution.
Once there, you can see each monitor’s resolution. We will need those numbers, so take note.
It doesn’t matter if each resolution is different, we can still edit the image. Once the position of each monitor is set up and we know the resolution of each one, we can now proceed to the next step.
Step two: Downloading your wallpapers
Using your monitors’ resolution numbers, you can search in the web for free wallpapers that match those numbers. You can download an image of the same resolution or larger, but a smaller one will distort if you try to enlarger it.
For this example we will use two 1920×1080 images, as you can see below.
Once you find and download your 2 new wallpapers, it’s time to edit
Step three: editing your dual wallpaper.
Now, open the image editor of your choice. As we previously stated, we will use Photoshop for this guide, but the process is the same in any editor. Once opened, create a New document with the width of the two monitors together, for us the final size is 3840 (1920 + 1920) x 1080.
Once created, we can open each image in Photoshop and then copy/paste it in our 3840 x 1080 document or you can drag the images from the folder to Photoshop. We choose to drag the images because is the easiest way to do it.
Once dragged, move the image to its new position. Remember, this position determines the monitor that will display this wallpaper.
Now, do the same with the other image and move it to its final position. You will have something like this
Save your new dual monitor wallpaper image as a .jpg or .png in the folder of your preference and we are almost done.
Step four: changing your old wallpaper
Now it’s time for the change. Right-click in a blank space in your desktop and select “Personalize”, then click “Desktop Background” and finally in “Browse…”. Now, search for the folder where you save your new wallpaper and select the image. In the “Picture Position” menu, located at the bottom left, click and select “Tile” and save changes.
And you are done! Now you have your dual monitor background. This process can be used to make any combination of wallpapers: 2 vertical monitors, 3 monitor wallpaper and more.
The automated option: Using third-party programs.
If you want to skip the edition option and just want a program that change your single wallpaper into a different 2 monitor background, there are several third-party programs that can do that for you:
- Multimon Taskbar
- Dual Monitor Tools
Each one comes with its pro and cons, and some are not free. You can look for each program in the web to purchase/download and they come with their instructions to make your dual monitor wallpapers.
And that’s it. This guide is for Windows 7 only, because Microsoft did an upgrade to the Background changer in the Windows 8 and Windows 10 version.