EXACT SIZE. PRODUCT IN THE MIDDLE.

LINE OA image sizes and auto-fit

Every number here comes from the LINE for Business media specification page. Watch the caps: rich menus must stay under 1 MB while rich messages allow 10 MB. Pick a preset and the tool squeezes the file to fit without changing the pixel size.

Free · Files stay on your device

1Pick platform and size

PlatformImage size

1040×1040 px · ≤ 10 MB
Official: 1040 px wide, 520-2080 px tall, or a 1040x1040 square. JPG/PNG up to 10 MB.
Last verified 2026-09-29 · official figure · source

2Choose your photos

Preparing…

JPG · PNG · WebP · 10 max

Up to 10 images at a time
Up to 20 MB each · processed on your device

3Options

How to fit

Background colour

File typeMax file size (KB), blank for no limit

≈ 10 MB

Choose photos to start.

Preparing…

Photos are never uploaded. Everything happens in your browser.

4Results

Fitted photos appear here at exactly 1040×1040 px.

LINE OA image size table

Use	Size (px)	Max file	Notes
LINE OA rich message square	1040 × 1040	10 MB	Official: 1040 px wide, 520-2080 px tall, or a 1040x1040 square. JPG/PNG up to 10 MB.Official figure · Source
LINE OA rich message wide	1040 × 520	10 MB	Official: 520 px is the shortest allowed Rich Message height (2:1). Up to 10 MB.Official figure · Source
LINE OA rich menu large	2500 × 1686	1 MB	Official: 2500x1686 (or 1200x810, 800x540), JPG/PNG up to 1 MB.Official figure · Source
LINE OA rich menu small	2500 × 843	1 MB	Official: 2500x843 (or 1200x405, 800x270), JPG/PNG up to 1 MB.Official figure · Source
LINE OA cover (profile page)	1080 × 720	3 MB	Official: 1080x720 recommended, up to 3 MB.Official figure · Source
LINE OA chat-list cover (PC)	1080 × 878	3 MB	Official: 1080x878 recommended, up to 3 MB. Shown on PC only.Official figure · Source
LINE OA profile picture	640 × 640	3 MB	Official: 640x640 recommended, up to 3 MB.Official figure · Source

Numbers last verified: 2026-09-29. Platforms change rules often; check the platform help page before an important upload.

How to use it

Pick the LINE OA size from the list. Defaults follow the table above.
Drop your product photos, several at once (10 at a time for free).
Choose how to fit: pad to keep the whole image, crop to fill the frame, or centre the product with empty edges trimmed.
Choose the file type and the maximum file size, then press "Fit images".
Download each image or everything as a ZIP. Nothing is uploaded anywhere.

LINE OA checklist

Rich menus must stay under 1 MB. A full-size 2500 px PNG often exceeds that, so choose JPG.
Two rich menu sizes exist: large 2500x1686 and small 2500x843. Pick by button count.
Rich messages are 1040 px wide, 520-2080 px tall, or a 1040x1040 square.
Profile-page cover is 1080x720 and the PC chat-list cover is 1080x878, both up to 3 MB.

Good to know

Centre product works on a plain solid or transparent background, such as a white sweep. On a real scene or a gradient it pads instead and tells you on the result.
The size cap lowers JPG/WebP quality only as much as needed; the pixel size never changes. PNG cannot be compressed by quality.
Your originals are untouched. Results are new files with EXIF and location data left out.

Frequently asked questions

What image sizes does LINE OA use?

LINE OA rich message square 1040×1040 (up to 10 MB); LINE OA rich message wide 1040×520 (up to 10 MB); LINE OA rich menu large 2500×1686 (up to 1 MB); LINE OA rich menu small 2500×843 (up to 1 MB); LINE OA cover (profile page) 1080×720 (up to 3 MB); LINE OA chat-list cover (PC) 1080×878 (up to 3 MB); LINE OA profile picture 640×640 (up to 3 MB).

What is the file-size limit for LINE OA images?

The file-size ceilings used here are 1 MB / 3 MB / 10 MB, depending on the size in the table. Set the maximum file size and the tool lowers JPG/WebP quality only as much as needed, without changing the pixel size. PNG cannot be compressed by quality.

Where do these sizes come from, and how reliable are they?

Read from the platform's own help pages: LINE OA rich message square, LINE OA rich message wide, LINE OA rich menu large, LINE OA rich menu small, LINE OA cover (profile page), LINE OA chat-list cover (PC), LINE OA profile picture. Sources: lineforbusiness.com. Last checked 2026-09-29. Sizes can change, so check your seller account before a big campaign.

Are my photos uploaded when I fit them for LINE OA?

No. Fitting runs in your browser. Your originals are untouched, results are new files without EXIF or location data, and up to 10 images at a time are free.