Image to Sticker: Turn Any Photo Into a Custom Sticker

A good sticker starts with one thing: a clean subject cutout on a transparent background. Whether the sticker lives in iMessage, WhatsApp, Telegram, or on a laptop lid, the workflow is the same — isolate the subject, resize to spec, export in the right format.

This guide covers every major platform's sticker requirements, the best tools for cutting out subjects, and how to prepare files for physical sticker printing.

Step 1: Cut Out Your Subject

Every sticker needs a clean edge between the subject and nothing. That means removing the background and exporting as PNG (for transparency) or WebP (for Signal stickers).

Fastest method: Pixotter's background remover runs entirely in your browser. Drop an image, get a transparent cutout in seconds. No upload to a server, no account, no watermark. For detailed background removal techniques, see the full guide on making a PNG transparent.

If you want a circular sticker shape instead of a subject cutout, use Pixotter's circle crop to create a round image with a transparent background.

Cut-Out Tools Compared

iOS Subject Lift (iOS 17+): Open a photo in the Photos app, long-press the subject until it lifts off the background, then tap Copy or Share. This produces a transparent PNG in your clipboard or share sheet.

Samsung Object Eraser: Open Gallery, tap the pencil icon, select Object Eraser, and tap the background areas to remove. Export the result as PNG.

Photoshop v26.3: Open the image, go to Select > Subject, refine edges with Select and Mask, delete the background, and export as PNG with transparency. The most precise option for tricky edges like hair or fur.

remove.bg: Upload an image on remove.bg and download the cutout. Free downloads are limited to 0.25 megapixels. Full-resolution output requires credits or a subscription.

Step 2: Resize for Your Platform

Each messaging platform has specific size requirements. Getting these wrong means blurry stickers or outright rejection.

Pixotter's resize tool handles exact pixel dimensions — set width and height to 512x512 and the tool locks the output to those dimensions. No guesswork.

Platform Sticker Guides

iMessage Stickers (iOS 17+)

Apple added a built-in sticker maker in iOS 17 that turns any photo subject into a sticker without third-party apps.

How to create an iMessage sticker:

1. Open the Photos app on your iPhone or iPad (iOS 17 or later)
2. Find the photo with your subject
3. Long-press the subject — it lifts off the background with a glow animation
4. Tap Add Sticker from the popup menu
5. The sticker appears in your sticker drawer, accessible from any iMessage conversation

Customize the effect: After adding, long-press the sticker in your drawer and tap Add Effect to apply:

• Outline — adds a white border, mimicking a die-cut vinyl sticker
• Puffy — a 3D inflated look with simulated depth
• Shiny — holographic reflective surface
• Comic — bold outlines with a pop-art feel

iMessage stickers sync across devices via iCloud. Stickers you create on your iPhone appear on your iPad and Mac automatically.

Limitations: You cannot export iMessage stickers as image files for use outside Apple's ecosystem. For cross-platform use, create the cutout with Pixotter's background remover and save the transparent PNG directly.

WhatsApp Stickers

WhatsApp introduced Personal Stickers, letting you create sticker packs directly from photos inside the app.

Requirements:

• Image size: exactly 512x512 pixels
• Format: PNG or WebP with transparency
• File size: under 100 KB per sticker
• Pack size: minimum 3 stickers per pack

How to create WhatsApp stickers:

1. Open a WhatsApp chat and tap the sticker icon next to the message field
2. Tap the Create button (pencil icon) at the top of the sticker picker
3. Select a photo from your gallery
4. WhatsApp's built-in editor lets you erase background areas manually
5. Add the sticker to your personal pack

For cleaner results: Remove the background first with Pixotter, resize to 512x512, then import the pre-made cutout into WhatsApp. The built-in eraser tool is adequate for simple backgrounds but struggles with hair, transparency, and complex edges.

Third-party apps like Sticker Maker for WhatsApp (Android/iOS) offer more control — import transparent PNGs, organize multiple packs, and share packs with contacts.

Telegram Stickers

Telegram supports static stickers (PNG), animated stickers (TGS), and video stickers (WebM). For photo-based stickers, you want static.

Requirements:

• Image size: exactly 512x512 pixels (one side must be 512px; the other can be smaller)
• Format: PNG with transparency
• File size: under 512 KB

How to create a Telegram sticker pack:

1. Open a chat with @stickers (Telegram's official sticker bot)
2. Send the command /newpack
3. Name your sticker pack
4. Send the bot your 512x512 transparent PNG
5. Assign an emoji that matches the sticker (the bot prompts you)
6. Repeat for each sticker in the pack
7. Send /publish to make the pack available
8. Choose a short link (e.g., t.me/addstickers/YourPackName)

Prep workflow: Remove background with Pixotter > resize to 512x512 > convert to PNG if needed > send to @stickers bot.

Telegram is strict about the 512px dimension. Images that are 511px or 513px get rejected. Use exact pixel dimensions in your resize tool.

Signal Stickers

Signal uses a dedicated sticker creator tool and requires WebP format.

Requirements:

• Image size: exactly 512x512 pixels
• Format: WebP with transparency
• File size: under 300 KB per sticker
• Pack size: 1-200 stickers

How to create a Signal sticker pack:

1. Go to signal.art/stickers (Signal's sticker creator)
2. Upload your transparent images — the tool accepts PNG and converts to WebP
3. Assign an emoji to each sticker
4. Set a pack title and author name
5. Upload the pack — Signal generates an install link
6. Share the link with anyone on Signal

Prep workflow: Remove background with Pixotter > resize to 512x512 > convert to WebP > upload to Signal's creator.

Signal sticker packs are end-to-end encrypted. Only people with the direct install link can add your pack.

Platform Requirements Summary

If your cutout exceeds the file size limit, run it through Pixotter's compressor to reduce the file size without visible quality loss.

Making Physical Stickers From Photos

Digital stickers are free. Physical stickers cost money but last on laptops, water bottles, and notebooks. Here is what you need to know.

Die-Cut vs. Kiss-Cut

Die-cut stickers look more professional as individual pieces. Kiss-cut is cheaper for sheets with multiple stickers.

Print-Ready File Specifications

Design Tips for Print Stickers

• Bold outlines work. A 2-4px stroke around your subject helps the sticker read clearly at small sizes and gives die-cut stickers a finished look.
• Simplify the subject. Fine details and thin lines disappear below 2" sticker sizes. Remove small elements that won't survive printing.
• Test at actual size. Print a test page at 100% scale before ordering. What looks great at full-screen on a monitor might be unreadable at 3 inches.
• White border optional. A thin white border (1-2mm) between the design and the cut line makes the sticker pop on dark surfaces. Most printers add this by default for die-cut.

For print prep, start by removing the background with Pixotter, then replace it with a solid color or keep it transparent depending on your printer's requirements. See the full guide on changing image backgrounds.

FAQ

What image format works best for stickers?

PNG with transparency for most messaging platforms (iMessage, WhatsApp, Telegram). WebP with transparency for Signal. For physical print stickers, high-resolution PNG at 300 DPI or a vector PDF.

Do I need to remove the background first?

Yes. Stickers are meant to float over conversations or surfaces without a rectangular frame. A subject on a transparent background is the starting point for every sticker format. Use Pixotter's background remover or any of the cut-out tools listed above.

What size should my sticker image be?

512x512 pixels for WhatsApp, Telegram, and Signal. iMessage handles sizing automatically. For physical stickers, design at the intended print size at 300 DPI — a 3-inch sticker needs a 900x900 pixel image minimum.

Can I make stickers from any photo?

Almost any photo works, but stickers look best when the subject is distinct from the background. High-contrast images with clear edges produce cleaner cutouts. Photos where the subject blends into the background (same colors, soft lighting) require manual edge cleanup.

How do I keep the file size under the platform limit?

Use Pixotter's compressor to reduce file size without visible quality loss. For Telegram's 512 KB limit, PNG compression usually handles it. WhatsApp's stricter 100 KB limit may require converting to WebP, which produces smaller files at equivalent quality — use Pixotter's converter for that.

Can I turn a Live Photo into a sticker?

On iOS 17+, yes. Long-press the subject in a Live Photo and it creates a static sticker from the key frame. Apple does not currently support animated stickers from Live Photos in iMessage (animated stickers use a separate Memoji/Animoji system).

What is the difference between a sticker and a transparent PNG?

Functionally, a sticker is a transparent PNG or WebP packaged for a specific platform. The "sticker" label means it has been registered in a sticker pack (Telegram, Signal) or saved to a sticker drawer (iMessage, WhatsApp). A standalone transparent PNG is the raw material — it becomes a sticker once you import it into a messaging platform or send it to a sticker printer.

How do I share sticker packs with friends?

Telegram and Signal generate shareable links after you publish a pack — anyone with the link can install it. WhatsApp lets you share personal sticker packs via the sticker picker's share button. iMessage stickers sync across your own Apple devices but cannot be shared as a pack with other users (they can save individual stickers you send in conversations).