What is the short answer?
Add two photos, choose Grid or Rows, select the canvas shape, then adjust each crop before downloading the combined image.
Choose photos that belong together
Pairs work best when the images share a purpose. Use before and after views, two angles of the same subject, or one wide scene with one close detail. Similar brightness and color make the finished comparison easier to scan.
Pick the right orientation
Use a wide canvas when both photos should sit left and right. A portrait or square canvas gives each image less horizontal room, so it suits upright subjects and phone photos. Rows can stack the pair when a vertical result communicates the story more clearly.
Protect the important details
The frames preserve each photo's proportions and crop the outer area when necessary. Select each frame, keep zoom modest and reposition the source until faces, products or text remain visible. Avoid forcing both photos into identical crops if their subjects sit in different places.
Set spacing with a purpose
A small gap separates two moments without breaking the comparison. Use no gap when the images should read as one continuous scene. Keep the background neutral unless a color from both photos provides a natural connection.
Export and inspect the pair
JPG is practical for photographic sharing. PNG preserves sharper interface text and graphic edges but usually creates a larger file. Use 2× HD when the combined image will be viewed large or cropped again, then open the download and check both frames.
Which sources support this guide?
These primary references support the format, browser-processing and output guidance above. CollagePlus also tests each workflow against the current tool.