Circular stamp
A versatile choice for personal names and short phrases that remains legible in small seal fields.
STAMP & SIGNATURE MAKER
Online Stamp and Signature Maker
Create a Korean or Hanja stamp, or sign with a mouse or finger, and save it as a transparent PNG.
01
Enter the Name for the Stamp
Enter up to 12 characters and adjust the color, font, text weight and size, and border thickness.
Your name and generated stamp are never sent to a server.
02
Choose a Stamp Style
Save any stamp as a transparent PNG or send it directly to the PDF tool.
03
Sign Directly with a Mouse or Finger
Use a mouse on desktop, or a finger or stylus on a phone or tablet.
Sign in this area
STAMP IMAGE GUIDE
Create Stamp Images Online and Save Transparent PNGs
This free online stamp maker turns a Korean or Hanja name, company name, or short phrase into circular, square, and oval electronic stamp images. Save a transparent PNG and overlay it directly in Hangul, Word, PDF, or an image.
How to Make a Transparent Stamp PNG
- Enter the name or short phrase for the stamp.
- Choose the font style, stamp color, text weight and size, and border thickness.
- Review the generated circular, square, oval, and other styles.
- Choose Download transparent PNG or Use in PDF.
Ways to Use Stamp Images
- Signature and seal fields in contracts and confirmation forms
- Electronic stamps on quotes, statements, and purchase orders
- Transparent seal images for Hangul and Word documents
- Place stamps on selected PDF pages
Choosing Circular, Square, or Oval Stamp Styles
Square stamp
Arranging two to four Korean or Hanja characters in a grid creates a traditional seal appearance.
Oval and rectangular stamps
Uses space efficiently for vertical names, company names, and longer text.
Frequently Asked Questions
Can I mix Korean and Hanja characters?
Yes. Yes. You can mix Korean, Hanja, English letters, and numbers. If the selected font does not support a Hanja character, your device's fallback font may be used.
Does the downloaded stamp image have a transparent background?
Yes. Yes. The PNG background is transparent, so the stamp can be overlaid naturally in Word, Hangul, PDFs, and image editors.
Can I put the generated stamp directly into a PDF?
Yes. Yes. Choose Use in PDF below a stamp to transfer it safely to the PDF tool. The image is handled only in your current browser, not on a server.
Does this stamp image have the same legal effect as a registered seal or signature?
Creating a stamp image does not automatically give it legal effect. Check the signature or seal requirements and identity-verification process for the contract or submission.
Is the name I enter stored on a server?
No. No. Name entry and image generation happen entirely in your browser. Your text and generated image are not sent to Congdy Coding servers.
This tool and guide are reviewed directly by Congdy Coding, operated by a developer with eight years of experience. Last updated: October 5, 2026