Compare
AI vs PDF
AI is an Illustrator editing source. PDF is a fixed-layout file commonly delivered for viewing or printing. Separate continuing design work from final distribution.
Which format should you choose?
Keep AI for Illustrator editing; deliver PDF for viewing or printing and inspect the export.
Good fit for AI
Illustrator editing · Vector-artwork production source
- Keeping an Illustrator master
- Vector design workflows
Good fit for PDF
Document distribution · Print-ready data
- Sharing a fixed layout
- Handouts and deliverables
Basic information
| Field | AI | |
|---|---|---|
| Extension | .ai | |
| MIME type | application/postscript | application/pdf |
| Common uses | Illustrator editing · Vector-artwork production source | Document distribution · Print-ready data |
| How to open | Open AI in Adobe Illustrator or compatible software and check important artwork in the target application. | Open PDF in a browser or PDF reader. |
| Export or convert | Export SVG, PDF, or PNG for web or delivery, and keep the AI master separately. | Print, extract text, or export images according to the purpose. Check page order, fonts, links, and image quality after conversion. |
Choose by use case
Keeping an Illustrator master
Illustrator editing · Vector-artwork production source
AIVector design workflows
Illustrator editing · Vector-artwork production source
AISharing a fixed layout
Document distribution · Print-ready data
PDFHandouts and deliverables
Document distribution · Print-ready data
PDFKey point 1
AI keeps the production source editable in Illustrator.
More on the differencesKey point 2
PDF is suited to fixed-layout delivery across recipients.
More on the differencesMore on the differences
Retain the AI master and export a PDF for the recipient. Check fonts, images, page size, and appearance after export.
- AI is an Illustrator production file.
- PDF is used for fixed-layout distribution.
- Editing access and recipient software differ.
Frequently asked questions
Can I replace the AI master with PDF?
Do not assume so. Keep AI for future Illustrator changes and verify the delivered PDF.