Merging photos doesn't have to cost you quality. Run through this checklist before you download your merged image, and most quality problems are avoidable.
1. Start from the original file, not a screenshot
A screenshot of a photo is a re-compressed, often smaller copy of it. Always merge the original file from your camera roll or downloads folder, not a screenshot taken of it on screen.
2. Don't let the tool upscale a smaller photo
If one photo is much lower resolution than the others, a tool that stretches it up to match will make it visibly blurry. A good merge tool caps every photo at its own original size instead of upscaling it.
3. Pick a fit mode that crops instead of stretches
Mismatched aspect ratios are the most common visible distortion in a merged photo. The full fix for this is here, but the short version is: use a fit mode that crops to a shared size rather than stretching.
4. Export as PNG if anything needs transparency
Exporting a merge with transparent areas as JPG will fill them in solid, since JPG has no transparency support. See when format actually matters for the full breakdown.
5. Don't re-merge an already-merged image
Merging photo A and B, then merging that result with photo C, compresses the image an extra time at each step. Upload all your photos to one merge instead of stacking merges on top of each other.
| Symptom | Likely cause |
|---|---|
| Blurry section | Screenshot used instead of the original file, or upscaling |
| Stretched or squeezed photo | Wrong fit mode for mismatched aspect ratio |
| Transparent area turned solid | Exported as JPG instead of PNG |
| Everything looks slightly worse than expected | Re-merged an already-merged image |
Frequently asked questions
- Why does my merged photo look worse than the originals?
- Usually one of five causes: a screenshot instead of the original file, upscaling, a stretching fit mode, the wrong export format, or re-merging an already-merged image.
- Does merging photos always reduce quality?
- No. Starting from original files and choosing the right fit mode and export format keeps a merge visually identical in quality to its source photos.