いじスタ Guides

Learn how to make the most of いじスタ for your sticker projects.

LINE stickers and custom emoji trip creators up on the details — exact pixel sizes, margins, background transparency, animation specs, and review rules. These guides walk through the whole process with いじスタ (EzStampify): making stickers from photos or AI-generated art, removing and cleaning up backgrounds, meeting the size and margin rules that cause most rejections, the specs for animated stickers and emoji, and why submissions get rejected. Everything runs in the browser — no install, no account.

Stickers × AI Tools

Master AI-powered sticker creation.

How to Make LINE Stickers with AI: Generation to Sales

For those who can't draw but want to make stickers, this guide explains an efficient workflow combining AI with the all-in-one tool 'いじスタ'.

Mastering AI Character Consistency for LINE Stickers

Keep one character consistent across a whole LINE sticker set using image-to-image (i2i), character sheets, and precise prompt engineering.

Basic Creation

From first steps to professional results.

How to Create LINE Stickers: Complete Guide for Beginners

A 6-step workflow for making LINE stickers: AI background removal, batch resizing, and official ZIP export ready for submission.

LINE Sticker Size & Margin Guide: Mastering the 10px Rule

LINE sticker sizes and margins in full: the 370x320px rule, the mandatory 10px transparent padding, and what Main and Tab images need.

Automated ZIP Export for LINE Stickers: No Manual Naming

Learn how to automate internal naming (01.png, etc.) and ZIP compression for LINE sticker submissions. Eliminate manual errors and focus on your creative work.

How to Create Animated LINE Stickers | From Video & Image Sequences

Learn how to easily create animated LINE stickers (APNG) for free from video files (MP4/WebM/MOV) or image sequences. Automatically satisfy LINE's strict file size (1MB limit), duration, and resolution rules with EzStampify's Auto Optimizer. Supports Pop-up, Effect, and Emoji formats.

How to Create LINE Stickers with Ibis Paint & CLIP STUDIO

A technical guide for artists on handling safety margins, resolutions, and batch processing to avoid common errors.

How to Make Photo Stickers: Clipping & Privacy Settings

Create custom LINE stickers of your children or pets using only your smartphone. Learn how to handle backgrounds and privacy settings.

Techniques & Solutions

Advanced editing for perfect stickers.

Background Removal for LINE Stickers: Easy AI Clipping

Every way to make LINE sticker backgrounds transparent: automatic AI clipping, the manual eraser, and chroma key — and when to use each.

How to Make a Transparent Sticker (PNG) for LINE

Learn what a transparent sticker is, how to remove the background with AI in seconds, and how to use the finished PNG — from LINE sticker submission to personal-use stamps.

Troubleshooting Background Transparency for LINE Stickers

Solve common issues like white backgrounds, jagged edges, and visibility problems in Dark Mode.

Background Preview for LINE Stickers: Stop 'Invisible' Art

Are your LINE stickers blending into the chat screen? Use background previews to spot hidden artifacts and stay readable on any theme.

Green Screen & Quantization: Perfect AI Sticker Cutouts

Remove backgrounds from AI illustrations (Midjourney, DALL-E) cleanly: 'Green Screen' prompts plus EzStampify's Quantization to fix colour noise.

Batch Image Splitter for LINE Stickers: AI Auto-Crop

Stop exporting LINE stickers one by one. AI auto-split and grid extraction crop multiple illustrations into individual files in one pass.

3 Ways to Master Positioning and Margins for LINE Stickers

AI art often leaves no room for text. Three margin adjustment patterns in EzStampify to get the layout of your stickers right.

Complete Guide to Adding Text to LINE Stickers

Text makes or breaks a sticker. Picking a readable font, adding outlines and shadows for visibility, and captioning many stickers at once.

Support & FAQ

Frequently asked questions and help.

LINE Sticker Review FAQ: Reasons for Rejection & Solutions

Common questions and answers for passing the LINE Creators Market review. From technical specs to copyright and global taboos.

LINE Sticker Rejection Guide: Common Reasons & Solutions

Why LINE stickers get rejected — trademarks, copyright, and technical specs — with the concrete fix for each so yours gets approved.

LINE Emoji Submission Guidelines | Passing the Review

A practical guide to the LINE emoji review process. Covers required dimensions, visibility tips, and prohibited content.

Free Alternatives for Sticker-Making Apps | Tool Comparison

Popular photo-to-sticker services go offline sometimes. Canva, remove.bg and LINE Sticker Maker compared — plus a free bulk-processing alternative.

Ready to create?

Try our free tools online. No login required.

Start Editing Now