Overview
Introduction
This tool rotates a logo by any angle, entirely in your browser, using the same inverse-sampling rotation technique as the site's general PNG rotator.
Because the canvas expands to fit the rotated shape, you never lose corners the way a fixed-size rotation would.
What Is Logo Rotator?
A logo-focused wrapper that reads an uploaded logo's pixel data, applies an inverse-rotation sampling pass to build a new, correctly-sized output buffer, and paints it to a canvas you can download.
It supports the common 90/180/270 degree presets as well as any custom angle.
How Logo Rotator Works
For every pixel in the new, larger output canvas, the tool works backward: it rotates that pixel's position by the negative of the requested angle to find where it would have come from in the source logo, then copies that source pixel's color (or leaves it transparent if outside the original bounds).
This avoids the gaps a naive forward rotation would leave in the output.
When To Use Logo Rotator
Use it to straighten a scanned or crooked logo, or to rotate a badge/icon-style mark to a specific orientation for a design layout.
It's also handy for quickly previewing a logo at different angles for a diagonal watermark or banner treatment.
Often used alongside Logo Resizer, Logo Cropper and Logo Edges Cleaner.
Features
Advantages
- Runs entirely client-side; the uploaded logo is never sent to a server.
- Never clips corners, since the canvas expands to fit the rotated bounding box.
- Supports exact preset angles as well as any custom degree value.
Limitations
- Nearest-neighbor sampling means non-90-degree rotations can show slightly jagged edges rather than smooth anti-aliased ones.
- Very large logo files can take a moment to process since every output pixel requires its own trigonometric calculation.
Examples
Best Practices & Notes
Best Practices
- Use the 90/180/270 presets when you need pixel-perfect results with no interpolation artifacts.
- Preview the result before downloading, since custom angles change the output image's dimensions.
Developer Notes
This lib function is a thin, validating wrapper around the already-shipped `rotatePng` from the general PNG category — the inverse-sampling rotation math is identical whether the source pixels are a logo or any other PNG.
Logo Rotator Use Cases
- Straightening a scanned or photographed logo
- Creating a tilted logo treatment for a banner or sticker
- Correcting a sideways logo asset before publishing it
Common Mistakes
- Expecting the output image to keep the same dimensions as the input — rotated (non-multiple-of-180) logos are generally wider or taller than the source.
- Rotating a very large logo file and expecting instant results.
Tips
- Combine 90-degree rotations with the resizer to reach a specific target aspect ratio.
- If edges look jagged at a custom angle, try uploading a higher-resolution source logo for a cleaner result.