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Image requirement guide

Resize an Instagram image

A visible anchor makes the crop predictable: keep the subject centered, or move the crop to the edge that matters.

Protect a 4:5 portrait crop

The 1080 × 1350 preset is a portrait canvas that works best when the main subject has room above and below. Crop mode fills the canvas, while fit mode preserves the entire image with padding for sources that cannot lose their edges.

Use the per-file anchor for a mixed batch

A single batch can contain portraits with different focal points. Keep the shared format global, then open an individual file adjustment and move the nine-point anchor before exporting.

Questions people ask

Will the tool upload to Instagram?

No. It only creates local image files; publishing remains a separate step.

Can I prepare square or landscape posts?

Yes. Use the exact pixel controls or choose another preset instead of assuming every destination uses the same ratio.

How to use this tool

This Instagram-oriented preset starts at 1080 × 1350 pixels, a 4:5 portrait canvas, and exports JPEG using crop mode. Move the focal point before processing so the subject stays in frame, or choose fit when preserving the complete source matters more than filling every edge. The page provides a practical starter canvas only; it has no current official Instagram source record and cannot promise how the platform will crop or accept a post.

What to choose and what you get

What to choose

  • one supported local image

Result

  • a separate processed image copy or local measurement report

Supported use

  • A local raster rendered to an exact 1080 × 1350 JPEG canvas with explicit crop positioning.
  • Switching to fit with a chosen background when a full uncropped source is more important than edge-to-edge fill.

Before you start

  • The route does not claim an official Instagram specification, feed-preview guarantee, safe-area certification, or upload approval.
  • It is not a square profile-image, story, reel, carousel-splitting, or transparent-PNG preset.

Supported formats

  • Accepted formats: JPG, PNG, WebP, HEIC, AVIF, GIF, BMP.
  • Output formats: JPG, PNG, WebP.

Browser support and permissions

  • Modern browser with JavaScript, a supported image decoder, and enough memory for the selected image.
  • No camera, microphone, or screen permission is needed.

Choose the right settings

  • Choose this route for the site's 1080 × 1350 portrait-post starter and review the crop visually.
  • Choose /instagram-grid-maker or /carousel-splitter when the task is slicing one design into multiple posts rather than resizing one image.
  • Use the exact-pixels page when the required Instagram destination or current guidance calls for a different canvas.

Worked example

A landscape photograph will become a 1080 × 1350 portrait post with the subject intentionally reframed.

Starting facts

  • The source ratio is wider than 4:5.
  • A crop is expected rather than a stretched conversion.

Observed operation: Use the 4:5 starter, place the focal point on the subject and create the separate 1080 × 1350 JPEG.

Review the result: Review edge cropping, subject placement and exact pixel dimensions before posting the downloaded copy.

Boundary: The starter does not guarantee social-platform acceptance, safe text zones, reach, quality or future specification stability.

What you can do

Crop a source image to the site's 1080 × 1350 JPEG starter for a 4:5 portrait social post.

If it does not work

  • The default crop can remove horizontal content when a landscape source is forced into the taller 4:5 frame.
  • Fit mode can introduce visible padding, while stretch mode can distort faces, text, or product geometry.
  • A later platform display crop can differ from the locally rendered canvas and remains outside this tool's validation.

Things to know

  • External requirements can change; compare the result with the current official source before submitting it.

Privacy boundary

The selected image stays in the current browser session and is not sent to an Aftermath processing service. How local processing is verified.

What this tool verifies

Checks the displayed limits and reports or creates a separate processed image copy or local measurement report from one supported local image.

Check before sharing

A local measurement or export does not guarantee acceptance by an external destination.

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