AI, EPS, SVG or PDF? How to Choose the Right Vector File Format

Short answer: keep an AI file as your editable master, send PDF to most printers, use SVG for websites, apps and many cutting machines, and supply EPS when an older or specialised workflow asks for it. All four can contain true vector artwork, but each is designed for a different job, and the best choice depends on who will open the file next.

What makes a file “vector”?

A vector file stores artwork as mathematical paths: points, lines and curves. That is why it can be scaled to any size without becoming blurry. A file extension alone does not guarantee this, though. A PDF or EPS can simply wrap a low-resolution JPG inside it. If you zoom in and the edges turn into pixels, the artwork is not really vector, whatever the file is called.

AI: the editable master

AI is Adobe Illustrator’s native format. It keeps layers, artboards, swatches and editable text, so it is the most convenient file for a designer who needs to change the artwork later.

• Best for: your master copy and future edits.
• Opens in: Adobe Illustrator. Some other programs can import AI files, but results vary.
• Watch out for: fonts. If text has not been converted to outlines, the recipient needs the same fonts installed.

EPS: the long-standing exchange format

EPS (Encapsulated PostScript) has been used to exchange vector artwork between programs and print workflows for decades. Many promotional-product suppliers, embroiderers and sign shops still ask for it.

• Best for: suppliers that specifically request EPS.
• Opens in: Illustrator, CorelDRAW, Affinity Designer, Inkscape and many production tools.
• Watch out for: EPS does not support some newer features such as transparency in the same way as AI or PDF, so effects may need to be flattened.

SVG: vector for the web and for cutting

SVG (Scalable Vector Graphics) is an open, text-based format that browsers display natively.

• Best for: website logos and icons, apps, and many vinyl cutters, plotters and craft machines.
• Opens in: browsers, most design software and many cutting-machine programs.
• Watch out for: not every print workflow accepts SVG, and complex effects may not translate. For cutting, paths must be clean and closed.

PDF: the print and sharing format

A properly made vector PDF preserves the paths, colours and layout, and anyone can view it.

• Best for: sending artwork to printers, sharing proofs and archiving.
• Opens in: any PDF viewer; editable in Illustrator and other vector programs.
• Watch out for: printers often have specific PDF requirements, such as colour mode, bleed, crop marks or a PDF/X standard. Check their specifications.

What about PNG, JPG and DXF?

PNG and JPG are raster formats, so they are not vector. They are still useful as previews and for everyday digital use. A transparent PNG is handy for presentations and websites. DXF is common in CAD, CNC and some laser workflows. If your machine needs DXF, say so when you request artwork, because DXF output may need extra preparation. See laser and CNC artwork.

Quick format guide

Where the file is going	Usually request
Your own archive and future edits	AI (plus PDF)
Commercial or digital printer	PDF, or what the printer specifies
Embroidery digitizer or promo supplier	EPS or AI (they create the stitch file)
Sign shop or large-format printer	PDF or EPS, at their specification
Vinyl cutter or plotter	SVG, EPS or DXF, depending on the software
Website or app	SVG, plus PNG as a fallback

This table is general guidance. The supplier who will produce the job always has the final say.

Questions to ask your printer or vendor

Before ordering artwork, ask:

1. Which file format and software version do you prefer?
2. Should text be converted to outlines?
3. Which colour mode do you need: CMYK, RGB or Pantone spot colours?
4. What final size, bleed and safe area do you require?
5. Are there minimum line widths or other technical limits for this process?

Then share the answers with your vector artist. We prepare print-ready vector artwork around the specification you give us.

How we deliver files

We commonly supply AI, EPS, SVG and PDF, with high-resolution PNG and JPG previews where requested. Exact formats are confirmed in your quote. Not sure what you need? Tell us where the file is going and we will help you choose.

Request a free quote