1080 × 1920 resize — keep the whole image

Worked example

Resize a PNG to 1080×1920 for a Reel or Story with contain: 1600×1000 becomes 1080×675 with 622.5px transparent bars top and bottom.

A 1080×1920 frame is full-screen 9:16 and serves Reels, Stories and cover images. Put the headline in that band and keep it large, since the profile grid may show only a centered crop of the cover. The picture spans only 35.2% of the canvas height and the rest is transparent bars, so some of those zones land on bars rather than on your PNG content.

Contain scales the PNG by ×0.675 so the whole picture fits at 1080×675px, then fills the rest with transparent bars. The 622.5px bars sit above and below, so 35.2% of the canvas height is picture and nothing is cut. The 675px picture band sits between about y=622 and y=1297, inside the area that Reel and Story overlays leave clear, so the interface hides none of it.

With PNG the 622.5px bars are transparent, not white, and the file stays lossless. Platforms flatten transparency their own way, so the bars can turn black or white after posting; if the look matters, fill them with a colour first. A photo at 1080×1920 commonly lands around 2.7 to 5 MB. Platforms generally recompress uploads, so a large PNG costs upload time without keeping its lossless quality on screen.

A tour guide posts a 1600×1000 PNG map screenshot as a Story with contain: the band is legible, but labels that were 16px in the source are now about 11px, and the 622.5px bars above and below are blank. Enlarge labels to at least 28px in the source, or add a headline into the bars in a design tool. A PNG of this kind is around 2.7 to 5 MB; if the upload is slow or refused, that weight is the usual cause, not the 1080×1920 pixel size.

Confirm 1080×1920, then lay a rough mask of 250px at the top and 340px at the bottom over a screenshot of the result; any text under the mask has to move. Look at the bars next to your neighbouring posts to see whether their colour belongs. The file is saved as name-preset.png; open it in a viewer with a checkerboard background to confirm what is transparent, and compare the size with the estimate above.

1600 × 1000 px · PNG

1080 × 1920 px · PNG

PNG at 1080×1920: the 622.5px transparent bars apply to a 1600×1000 source; a platform may flatten transparency to black or white.