What is AI (Adobe Illustrator)?
Complete guide to the AI file format
What is it?
AI is Adobe Illustrator's native vector file format. It stores vector graphics as mathematical paths rather than pixels, allowing infinite scaling without quality loss.
AI files preserve all the layers, paths, text, gradients, and effects of an Illustrator document. Like PSD for raster graphics, AI is the standard for vector design work.
Technical Specifications
Pros & Cons
Advantages
Vector paths can be scaled to any size - from business card to billboard - without quality loss.
Text remains editable in Illustrator after saving, unlike rasterized formats.
Vector files are often much smaller than equivalent raster images.
AI is the industry standard for logo design, illustration, and vector artwork.
Disadvantages
AI files are primarily for Adobe Illustrator - other applications have limited compatibility.
AI cannot be used directly on websites - must be exported to SVG, PNG, or other formats.
Working with vector graphics in Illustrator requires professional-level skills.
AI files saved in newer Illustrator versions may not open correctly in older versions.
When to Use It
Here are the most common situations where AI (Adobe Illustrator) is the right choice:
Logo Design
AI is the standard format for creating scalable logos used across multiple sizes and media.
Brand Identity
Brand guidelines and identity systems are created in AI for consistent, scalable output.
Illustration
Professional digital illustration for publishing and advertising uses AI format.
Print Design
AI is commonly used for print materials like business cards, brochures, and packaging.
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Start Converting NowFrequently Asked Questions
Can I open AI files without Illustrator?
Affinity Designer and Inkscape can open AI files with varying compatibility. The free Inkscape works well for basic AI files.
How do I convert AI to PNG?
Use Illustrator (File > Export) or our free online converter to convert AI to PNG at your desired resolution.
What is the difference between AI and SVG?
SVG is an open web standard for vector graphics. AI is Adobe's proprietary format with more features for professional design.
Can I open AI in Photoshop?
Yes, Photoshop can open AI files but will rasterize them at a resolution you specify.
What is the difference between AI and EPS?
EPS is an older, more compatible vector format. AI is Illustrator's native format with more modern features.