AI 파일 소개
AI (Adobe Illustrator · 이미지 포맷)
Adobe Illustrator(.ai)은(는) 데이터 교환, 문서 아카이빙 및 멀티플랫폼 워크플로우에 사용되는 표준 파일 형식으로 KaijuConverter에서 완벽히 지원됩니다.
분류
Raster & Vector Images
확장자
.ai
MIME 타입
application/illustrator, application/postscript
지원 역할
AI 포맷의
탄생 배경.
Adobe Illustrator 1.0 shipped in March 1987 as Adobe’s first end-user product — and the .ai file was its native save format. The earliest AI files were actually valid EPS PostScript with some Adobe-specific extensions. That continued for a decade until Illustrator 9 (2000), when Adobe pivoted AI to a PDF-based container. Since then, an .ai file is essentially a PDF with private Illustrator metadata layered on top.
That hybrid heritage is the .ai’s superpower and its weirdness. You can rename a modern .ai to .pdf and it will open in any PDF reader with a flattened view of the artwork. Open the same file in Illustrator and you get the full editable layer stack, symbol library, and art boards. For most designers, AI is the master file; every other deliverable (PDF, EPS, SVG, PNG) is exported from it.
흥미로운 사실 및
트리비아.
From Illustrator 9 (2000) onward, .ai files are actually PDF containers with Adobe private metadata — rename .ai to .pdf and it opens in Acrobat.
The format supports an arbitrary number of art boards (separate canvases) in one file — handy for multi-size design kits.
Layer, symbol, and brush data are stored in a private "AIPrivateData" dictionary that only Adobe tools fully understand.
Adobe Illustrator 1.0 shipped on a single 3.5" floppy disk and cost $495 in 1987 — about $1,300 in today’s money.
The earliest AI files from 1987-1999 were PostScript-based and are now notoriously hard to open in modern Illustrator.
장점 및
한계점.
장점
- Native format for Adobe Illustrator — full fidelity for every tool, effect, and layer.
- PDF-compatible since Illustrator 9 — any PDF reader can display a flattened preview.
- Supports art boards, symbols, brushes, gradient meshes, and effects.
- Professional print workflow integration — CMYK, spot colors, and color profiles are preserved.
- Tight Creative Cloud integration with Photoshop, InDesign, and After Effects.
한계점
- Proprietary — true editability requires Adobe Illustrator or a few niche alternatives (Affinity Designer, Inkscape partial).
- Browsers and lightweight viewers show only the flattened PDF preview, not layers.
- Old AI files (pre-v9) are PostScript-based and often unopenable in modern Illustrator.
- File sizes can balloon when multiple art boards embed hi-res raster images.
- Subscription-locked: no perpetual-license path to the full editor since 2013.
일반적인 파일 크기 및 용량
Logo with one art board
200 KB - 2 MB
Full brand identity kit (multi art boards)
10-50 MB
Complex illustration with embedded photos
100-500 MB
기술 사양
- MIME type
- application/postscript or application/pdf (modern)
- Extensions
- .ai
- Current container
- PDF 1.5+ (since Illustrator 9, 2000)
- Legacy container
- PostScript (pre-Illustrator 9)
- Color modes
- RGB, CMYK, Grayscale; supports spot colors and Pantone
원본에서 변환
AI
주요 사용 사례
Vector logo design, print illustration, brand asset creation
관련 포맷
인기 비교
인기 AI 변환
AI 포맷에서 가장 많이 변환하는 대상 포맷입니다.
AI 관련 자주 묻는 질문
자주 묻는 질문
KaijuConverter에 AI 파일을 업로드하면 별도 뷰어나 프로그램 없이 PDF, JPG, PNG 등 표준 포맷으로 즉시 변환할 수 있습니다.
네, 25MB까지 무료(24시간 패스 및 Pro는 1GB)로 제공되며 업로드된 모든 파일은 60분 후 서버에서 자동 삭제됩니다.
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