How to crop an image into a circle with OnyxPDF
- Drop your photo into the tool.
- Set the corner radius: 0% for square, 50% for a full circle.
- Optionally lock to a centre square for profile pictures.
- Click “Download PNG” — corners are transparent.
Why do it in your browser instead of uploading?
- Transparent PNG output: the circle floats cleanly on any background — websites, presentations, chats.
- Radius control means one tool covers subtle rounded rectangles and full circles.
- Perfect for profile pictures: WhatsApp, Instagram, X and LinkedIn all display circles.
- No upload of the portrait you are cropping.
Good to know (honest limits)
- Output is PNG only — JPG cannot store transparency.
- The crop is centred; for off-centre subjects, use Crop Image first to frame, then circle-crop the result.
Frequently asked questions
Why is the output a PNG?
Only PNG (and WebP) can store the transparent corners. A JPG would fill them with a solid colour and ruin the effect.
What size should a profile picture be?
At least 400×400 px for crisp display. Use the centre-square option, then Resize Image to the exact size a platform wants.
Can I make rounded corners instead of a circle?
Yes — set the radius between 1% and 49% for rounded-corner rectangles.
Is my photo uploaded?
No. The crop is drawn locally on a canvas.