LINE sticker specs (370×320px with a 10px margin) and what the review checks for

A sticker set sold on LINE Creators Market needs three kinds of image. PochiSta exports the sticker image — the artwork actually sent in a chat.

All three are transparent PNG, 72dpi or higher, RGB, and under 1MB each. A set is 8, 16, 24, 32 or 40 stickers, and the whole ZIP must stay under 60MB.

Approaching this like a Discord or Slack emoji will not pass. Four assumptions are different.

• It is not square: 370×320px, landscape
• A margin is required: leave about 10px rather than drawing to the edge
• It is sold as a set: 8–40 stickers go through review together instead of being uploaded one by one
• Three different roles: the sticker, main and tab images may each be a different picture

That is why PochiSta keeps LINE out of the platform spec list and puts it in its own section of the export dialog. It is also left out of the bulk ZIP — having LINE files appear every time you export for Discord would only get in the way.

The margin is not only about breathing room. Stickers render close to the chat bubbles, so artwork drawn to the very edge looks cramped and can appear clipped on some devices.

PochiSta fits the square canvas inside the 370×320px frame without stretching it. Subtracting the 10px margin leaves 350×300px, so a square drawing is placed centred at 300×300px — a 10px margin top and bottom, and 35px at the sides. Stretching the artwork to fill a landscape frame would distort faces and lettering, so the extra margin wins.

LINE stickers are a product, and they go through review. Being able to export the image here does not mean you may submit it for sale.

• Rights in the artwork you imported: anything built from someone else's illustration, an anime or game character, or a photo found online cannot be submitted, even after removing the background or editing it
• Rights of the people in it: even your own photo cannot become a sticker of someone else's face without their permission
• Font licensing: the fonts bundled with PochiSta allow commercial use, but a font you bring from your own device follows its own terms
• Real trademarks and logos: stickers carrying company names, product names or logos will be stopped in review

Once a sticker is finished, use “Download for LINE stickers” in the export dialog to save a 370×320px transparent PNG. Anything over 1024KB is quantised down automatically.

Build the 8–40 stickers in a set one at a time and export each. Bundling the set and generating the main and tab images are not supported, so prepare those in the LINE Creators Market console.

• LINE Creators Market sticker guidelines (official)

Checked against each platform's official documentation on 2026-08-23. Specs change, so check the sources too before you submit.

• Turning a photo into an emote that does not turn to mush
• How to make emotes that stay readable in chat