Can the crop rectangle extend past the logo's edges?

No, the rectangle must lie entirely within the source image's bounds — enter coordinates and a width/height that stay inside the uploaded logo's dimensions.

How do I trim extra transparent margin?

Upload the logo, then narrow the width/height fields inward from the default (which starts at the full image size) until the preview shows just the mark with no empty border.

Does cropping affect image quality?

No, cropping is a lossless pixel-copy operation — every pixel inside the crop rectangle is preserved exactly as it was.

What happens to transparency in the cropped region?

It's preserved exactly; alpha values inside the crop rectangle carry over unchanged.

Logo Cropper - Crop a Logo to an Exact Rectangle

Overview

Introduction

This tool crops a logo down to an exact rectangular region, entirely in your browser.

It's useful for trimming empty margin or isolating one part of a multi-element logo mark.

What Is Logo Cropper?

A logo-focused wrapper around the site's general PNG cropper: given a top-left (x, y) coordinate and a width/height, it copies just that rectangular region of pixels into a new, smaller image.

The tool validates the requested rectangle lies entirely within the source logo's bounds before processing.

How Logo Cropper Works

For every pixel in the target crop rectangle, the tool copies the corresponding source pixel's exact RGBA value into the new, smaller output buffer.

No resampling or blending happens — cropping is purely a copy operation on the pixels inside the chosen bounds.

When To Use Logo Cropper

Use it to trim excess transparent padding a logo was exported with, or to pull out a single icon element from a combined logo-plus-wordmark file.

It's also useful for creating a square avatar-style crop from a wider logo lockup.

Often used alongside Logo Resizer, Logo Edges Cleaner and Logo Rotator.

Features

Advantages

Runs entirely client-side; nothing is uploaded to a server.
Lossless — every retained pixel keeps its exact original color and alpha.
Precise pixel-level control over the crop rectangle.

Limitations

Requires manually entering the crop rectangle's coordinates and size; there's no click-and-drag selection.
The requested rectangle must be fully inside the source image — no padding is added if it extends past the edges.

Examples

Trim empty margin

Input

512x512 PNG logo with padding, crop to (32, 32, 448, 448)

Output

A tighter 448x448 PNG with the padding removed

Manually measuring where the visible mark starts and ends lets you crop out unwanted transparent border.

Isolate an icon from a lockup

Input

600x150 PNG (icon + wordmark), crop to (0, 0, 150, 150)

Output

A 150x150 PNG containing just the icon element

Cropping to the icon's known bounding box pulls it out as a standalone asset.

Best Practices & Notes

Best Practices

Use the Logo Color Picker or a browser zoom to find exact pixel boundaries before entering crop coordinates.
Start from the source's full dimensions (auto-filled after upload) and narrow inward.

Developer Notes

This lib function is a thin, validating wrapper around the already-shipped `cropPng` from the general PNG category — the rectangle-copy logic is identical whether the source pixels are a logo or any other PNG.

Logo Cropper Use Cases

Removing unwanted transparent padding from an exported logo
Extracting a single icon element from a combined logo lockup
Creating a square crop from a wide logo for avatar-style use

Common Mistakes

Entering a crop rectangle that extends past the source image's bounds, which the tool rejects.
Forgetting to re-check width/height fields after uploading a differently-sized logo.

Tips

The width and height fields default to the full uploaded image size — narrow them inward rather than starting from zero.
Follow with the Logo Resizer if the cropped result needs specific final dimensions.

Logo Cropper