qr code wallpaperProviderpixabayResolution4167 × 4179Aspect ratio1.00:1AuthorSunriseforeverSourceOpen original page Download wallpaper Available sizesPreview150 × 150Web638 × 640Large4167 × 4179Tagsqr codecovid-19mobile phonepandemicinfectionepidemiccorona restrictionsvaccination qr codevaccinationvaccination certificate