AI File Viewer: Illustrator

thefrog

In-app purchases

About this app

The "AI" in "AI Viewer" does not refer to artificial intelligence — it stands for the Adobe Illustrator file format (.ai). This app has no AI features; it's a viewer for opening professional design and document files directly on your device.

thefrog AI Viewer opens Adobe Illustrator (.ai), PDF, and SVG vector files, plus common image files (JPG, PNG, WEBP, GIF, BMP, HEIC, AVIF).

■ Key features
• Pinch to zoom in and out for a closer look
• Page navigation for multi-page AI (PDF Compatible) and PDF files
• GIF and WEBP animation playback
• "Recent" tab — view and individually delete recently opened files
• "Folder" tab — opens the system file picker so you can find and open a file from any location
• Open directly from other apps (KakaoTalk, email, browser, etc.) via "Open with" — files opened this way also appear in the "Received" tab (this does not automatically collect every download on your device)
• Share the original file you're viewing, or save/share the current page as a PNG image

■ About supported formats
AI files are supported only when saved from Adobe Illustrator with "Create PDF Compatible File" enabled. Legacy AI files saved without this option may not open.

■ How it works
PDF, SVG, and image files are always free and unlimited, no purchase required. AI files can be viewed free for up to 5 different files; after that, "Plus" (a one-time purchase, lifetime access, not a subscription) unlocks unlimited AI file viewing.

■ Privacy
The content of files you open is processed entirely on your device and is not transmitted to a server. Works fully offline — no internet connection required. No account or sign-in is required, and there are no ads.

A file viewer app made by thefrog.

What’s new

Fixed a bug where pinch-to-zoom and double-tap zoom stopped working after moving past the first page of a multi-page file.