Combining two photos into one is not a difficult task that will only take you a few minutes. Any graphic editor can handle this.
Instructions
Step 1
Even such a simple action as combining two images in one, there are several ways. You can apply them in a graphics editor, for example, Adobe Photoshop.
If you don't need to fine-tune the dimensions of the image, a fairly simple option can be used. Open one of the photos in the editor via the File - Open menu or by dragging and dropping. On the left panel, select the Crop Tool ("Crop"). Use it to select the entire image. The next step depends on which side of the first you want to place the second photo. For example, if to the right - in the same direction, drag the mouse cursor from the center of the right edge of the selection. Thus, you "add" space to the original picture.
Step 2
Open the second photo in the editor. Using the Rectangular Selection tool (key M) select the entire image (you can use the keys Ctrl + A). Copy the selection (keys Ctrl + C, or using the menu: Edit - Copy). Then go to the window where you worked with the previous photo. Paste the copied image here (Ctrl + V or Edit - Paste). Then select the Move Tool and align the position of the second picture with the first. If there is not enough space, use cropping again. If, on the contrary, there is too much of it, use the same cropping to reduce the field size. Save the entire image in.
Step 3
If you need to fine-tune the size of the image, before saving, go to the Image - Canvas Size menu. Enter the frame sizes you need here. If the photos are too small or large, they will have to be stretched or compressed using the same "rectangular selection". To do this, select the photo with this tool, right-click on it and select "Free Transform". Stretch the corners of the photo as you see fit. To navigate to another photo, go to the Layers toolbar and select the layer with its image. Then repeat the shrink / stretch operations.