How is the perforated edge created?

After padding the icon with a solid background margin, the tool punches a row of evenly-spaced circular holes (cut to full transparency) along all four edges of the new, larger canvas, spaced by twice the chosen hole radius — the same torn-paper look real postage stamps have.

Can I control the margin and hole size?

Yes. Set the margin width in pixels (the solid-color space between the icon and the perforated edge) and the perforation hole radius in pixels independently.

What background color is used?

White by default, matching the classic postage-stamp look, but you can set any RGB color for the margin and perforation background.

Does this work on non-square icons?

Yes — the margin is added equally on all four sides regardless of the icon's original aspect ratio, and the perforation holes are spaced independently along each edge.

Icon to Stamp Converter - Turn an Icon into a Postage Stamp Graphic

Overview

Introduction

This tool turns an icon into a postage-stamp-style graphic, entirely in your browser, complete with a perforated edge.

It's a genuinely new pixel operation for this site's icon tools — no other tool in this category punches a perforated border.

What Is Icon to Stamp Converter?

A client-side stamp-effect generator that reads an uploaded icon's pixel data, pads it with a solid background margin the way the Icon Space Adder does, and then cuts a series of evenly-spaced circular holes to full transparency around the very edge of the new canvas.

The result mimics the torn, perforated edge of a real postage stamp, with the original icon sitting in the center like the stamp's printed artwork.

How Icon to Stamp Converter Works

The tool first creates a larger canvas filled with the background color and copies the original icon into its center, offset by the margin amount — the same padding approach used elsewhere in this category.

It then walks along each of the four edges in steps of twice the hole radius, punching a circular region of fully transparent pixels centered on each step, producing the classic scalloped perforation pattern.

When To Use Icon to Stamp Converter

Use it to give an icon or logo mark a playful, collectible postage-stamp presentation for a marketing graphic or badge.

It's also useful for creating a distinctive 'approved' or 'certified' visual treatment around a small graphic.

Often used alongside Icon Space Adder and Square Icon Creator.

Features

Advantages

Runs entirely client-side; the uploaded icon is never sent to a server.
Independently adjustable margin width, hole size, and background color.
Produces a recognizable, real perforated-edge effect rather than a static decorative border.

Limitations

The perforation pattern is a simple evenly-spaced grid of circles along each edge; it doesn't attempt to replicate irregular, hand-torn stamp edges.
Very small margins relative to a large hole radius can cause perforation circles to overlap the icon's own content — increase the margin if that happens.

Examples

Create a classic white-bordered stamp icon

Input

A 128x128 icon PNG, margin 16px, hole radius 5px, white background

Output

A 160x160 PNG with a white margin and a ring of perforation holes along the edge

The margin adds 16px on every side, and holes of 5px radius are punched every 10px along the perimeter.

Create a stamp effect with a colored margin

Input

A 64x64 icon PNG, margin 10px, hole radius 3px, background rgb(255, 240, 200)

Output

An 84x84 PNG with a cream-colored margin and matching-background perforation holes

Any RGB background can be used instead of the default white, letting the stamp match a broader design's palette.

Best Practices & Notes

Best Practices

Keep the margin at least twice the hole radius so perforation circles don't overlap the icon's own artwork.
Use a background color that reads clearly as 'paper' against wherever the stamp graphic will be displayed.

Developer Notes

This is genuinely new pixel math (padding plus a perimeter-walking circular-hole-punch pass) with no existing 'stamp' tool anywhere in this category to reuse; it composes the same padding/fill primitives (createPixelBuffer/getPixel/setPixel) used elsewhere rather than reimplementing them, and adds a new perforation-punching routine on top.

Icon to Stamp Converter Use Cases

Creating a collectible postage-stamp-style graphic from a logo or icon
Designing an 'approved' or 'certified' badge treatment
Making a playful marketing asset from a flat icon

Common Mistakes

Choosing a hole radius larger than the margin, which punches into the icon's own artwork instead of just the border.
Expecting an irregular, hand-torn edge — the perforation pattern is a precise, evenly-spaced grid of circles.

Tips

Preview at full size before downloading, since perforation holes can look different in scale once zoomed out.
Pair with the Icon Shadow Adder afterward for a stamp graphic that looks like it's sitting on a surface.

Icon to Stamp Converter