Resize Image for Pinterest Online

Pinterest's feed is a masonry grid, meaning every column scrolls at a different pace based on the height of the pins in it. A taller pin simply takes up more vertical space on screen, which gives it more time in front of a scrolling viewer before the next pin pushes it out of view. This is the mechanical reason a 2:3 pin at 1000 by 1500 pixels consistently gets more impressions than a square 1000 by 1000 pin carrying the same content. It isn't that Pinterest's algorithm favors the shape directly, it's that the shape itself buys more screen time in a layout built around vertical scrolling.

That logic has a limit, though. Pinterest truncates pins taller than roughly 1:2.1, meaning a pin around 1000 by 2100 pixels or beyond gets cut off in the feed with a see more overlay covering the bottom section. A viewer has to click through to see the rest, which works against the entire point of a tall pin, since the goal was to hold attention in the feed itself rather than ask for an extra click before the content is even visible. Between 2:3 and 1:2.1 sits a gray area some creators use for infographics, recipe cards and step-by-step content where the extra height genuinely carries more information. For everything else, 1000 by 1500 remains the safer default.

Board covers get cropped smaller than most people expect

A board cover is uploaded as a square image, but Pinterest never actually displays it as a square. On your profile page, board covers render as small landscape thumbnails, roughly 222 by 150 pixels, cropped out of the center of whatever square image you uploaded. This means the top and bottom portions of a 600 by 600 upload are the parts most likely to get trimmed away. If your board cover has a face, logo or key detail positioned near the top or bottom edge of the square, it risks disappearing entirely once Pinterest applies its own crop. Centering the subject vertically, not just horizontally, is what keeps a board cover legible at the small size it actually displays at.

Idea Pins borrow the format, not the audience, of Stories and Reels

Idea Pins use the same 1080 by 1920 vertical frame as Instagram Stories and TikTok, which makes it tempting to reuse the exact same export across all three. The dimensions line up fine, but Pinterest's audience is searching with intent rather than passively scrolling a friend feed, so content that leans on trending audio or fast-cut editing tends to underperform content built around clear, readable steps. Text overlays that would feel excessive on a TikTok slide often read as helpful on an Idea Pin, since Pinterest users are more frequently looking for instructions, recipes or how-to content than pure entertainment. The pixel dimensions transfer between platforms, the content strategy for filling that frame does not.