Resize Image to 3000x3000

Apple’s page on digital packaging for music states that the recommended file size is 3000 by 3000 pixels or larger, the minimum size 1400 by 1400 pixels, that images must be square (1:1 aspect ratio) and the formats JPEG or PNG at 100 per cent quality. Its best-practice guide for curators sets a harder floor for playlist covers: minimum dimensions 3000 x 3000 pixels, 72 dpi minimum, PNG with no transparency, RGB.

Spotify’s cover art requirements read differently. The size may be anywhere between 640px and 10000px wide and tall, the aspect ratio must be 1:1, the resolution should be the highest available, and the format TIFF, PNG or JPG using lossless encoding. The page also says not to upscale images. So 3000 is not a Spotify rule; it is Apple’s recommendation, comfortably inside Spotify’s range, and one file at this size serves both. For Spotify’s lossless wording start from a PNG, which stays PNG here; a JPG is re-encoded at high quality.

Only the longer side loses anything. A 4:3 landscape photo gives up a quarter of its width, an eighth from the left and an eighth from the right. A 3:2 camera frame loses a third of its width, and a 16:9 frame nearly half, about 22 per cent from each side. Portrait pictures lose the same shares from the top and bottom instead: an upright phone photo keeps three quarters of its height, a 9:16 story barely more than half.

A 12-megapixel phone photo measures 4000 × 3000, and its short side is exactly 3000, so the square is lifted out of the middle without any rescaling; every pixel in the cover came from the camera. Lock aspect ratio is the wrong setting for this job: it fits the entire photo inside the box, which leaves 3000 pixels on the long side and fewer on the short, so nothing about it is square. Keeping every part of a wide photo means building a square canvas around it in an editor; a resize cannot add background.

Enlarging adds pixels, not detail. A 1080 × 1080 image saved from a social feed is stretched 2.8 times in each direction to reach 3000, and every edge turns soft. It passes a size check, but Spotify’s requirements say plainly not to upscale. The designer’s export or the camera file is worth finding first.

The same square also serves print. At 300 dots per inch, 3000 pixels run to 10 inches, 25.4 cm, on each side; at 150 DPI the file covers 20 inches, poster territory. A pixel resize leaves the DPI field empty, so a print service that wants 300 DPI in the header needs the result passed through the DPI tool afterwards; the pixels do not change.

Weight depends on content. A photograph at this size saved as JPG usually lands between 1.5 and 5 MB; a flat design is far lighter as PNG, and a photograph kept as PNG can pass 15 MB. If the distributor caps the upload, the compress tool brings a JPG under the figure, usually through quality alone.