What File Type Should a Logo Be?

A logo should start as a vector file. The master artwork is usually kept as an SVG, an Adobe Illustrator (AI) file, an EPS or a vector PDF. Raster versions such as PNG and JPG are then exported from that master for places that need them. No single format covers every use. A complete logo delivery is a small set of files, each suited to a specific job, all drawn from one editable vector source.

Why the master file should be vector

Vector artwork describes shapes as mathematical paths: points, curves, fills and strokes. Because those paths are recalculated at whatever size the logo is displayed or printed, a vector logo stays sharp on a business card, a website header or a large sign. Its shapes and colors can also be edited directly.

Raster images store a fixed grid of pixels. They look fine at or below the size they were made for. Enlarged beyond that size, edges soften or turn jagged, and individual shapes can't be cleanly separated or recolored. That makes raster files useful as outputs but poor as the original source of a logo.

A vector extension does not guarantee vector artwork

SVG, AI, EPS and PDF are container formats. Each can hold true vector paths, but each can also hold an embedded raster image. Some files contain only a low-resolution raster preview of the artwork. A JPG placed inside an SVG or a PDF is still a pixel image, even though the file extension suggests otherwise. The filename alone tells you nothing about whether the logo inside is editable vector artwork.

To confirm what a file contains, open it in a vector editor and check whether the logo is made of selectable paths or a single placed image. An outline or wireframe view, if the program offers one, makes this easy to see. For SVG files you can also read the code. Path-based shapes appear as elements such as path, circle or polygon. An embedded bitmap appears as an image element, often with a long encoded data string.

<!-- Vector shape: scalable and editable -->
<path d="M10 10 L90 10 L50 80 Z" fill="#1A1A1A"/>

<!-- Embedded raster: pixels inside an SVG wrapper -->
<image href="data:image/png;base64,..." width="100" height="100"/>

How the common logo formats compare

Format | Type | Transparency | Typical use | Main limitation

SVG | Vector (can embed raster) | Yes | Websites, apps, digital interfaces, general vector exchange | Mainly screen-oriented color; not a standard print-shop CMYK workflow

AI | Vector, proprietary to Adobe Illustrator | Yes | Editable master file for designers using Illustrator | Full editing generally requires Illustrator; other programs may open it with reduced fidelity

EPS | Vector (can embed raster) | Limited; live transparency is typically flattened | Legacy print, sign and promotional-product workflows | Older format; less consistent support in current software

PDF | Vector or raster, depending on contents | Yes | Print vendors, proofs, sharing with non-designers | Editability depends on how it was saved and which program opens it

PNG | Raster | Yes | Web graphics, presentations, documents, social media | Fixed pixel size; not scalable or path-editable

JPG | Raster, lossy compression | No | Photos and backgrounds where a solid fill is acceptable | No transparency; compression can blur flat colors and sharp edges

Which format to use, and when

• SVG: Use on websites and in digital products, where the logo needs to scale cleanly across screen sizes and stay lightweight. It is an open web standard and widely supported by browsers and design tools.
• AI: Keep as the working master if the logo was built in Illustrator and future edits are expected. It preserves layers, artboards and editing structure that exports may lose.
• EPS: Supply when a printer, sign maker or merchandise vendor specifically asks for it. Otherwise, vector PDF or SVG is usually the more current choice.
• PDF: A practical handoff for print vendors and for people without design software. Saved with vector content intact, it can carry print-ready artwork that most recipients can open.
• PNG: Use wherever a vector file isn't accepted but a transparent background is needed, such as slide decks, word-processing documents, email signatures and many social platforms. Export it at the size or sizes the destination calls for.
• JPG: Use only when transparency isn't needed and the platform requires it. It is rarely the best choice for a logo.

Support for opening, importing and editing these formats varies between applications and between versions of the same application. Check the current documentation of the specific tool or vendor rather than assuming a file will behave the same everywhere. This article does not test any particular software version.

Preparing an SVG export of a logo

Because SVG is the most common vector format for digital delivery, a few checks before export prevent most problems:

• Fonts: Convert live text to outlines, or confirm that the font will be available wherever the file is used. An SVG that references an uninstalled font will display a substitute typeface.
• Embedded images: Make sure the logo is not a placed bitmap inside the SVG. Logos traced or rebuilt from raster artwork should be checked path by path.
• Artboard and bounds: Fit the artboard closely to the artwork so the exported file has sensible dimensions and no unintended empty space.
• viewBox: Keep the viewBox attribute in the exported file. It is what allows the SVG to scale proportionally when its displayed size changes.
• Color: SVG is designed for screen color. Keep separate CMYK or spot-color files for print rather than relying on the SVG.
• Cleanup: Remove hidden layers, stray points and unused definitions so the file stays small and predictable.
• Verification: Open the exported SVG in a browser and in a second application, and zoom in. The edges should stay crisp, and the paths should still be selectable.

What a complete logo file package usually includes

A typical professional delivery pairs an editable vector master with ready-to-use exports. That usually means the master in the designer's native format (often AI), plus SVG, vector PDF or EPS, and PNG files with transparent backgrounds. These are often supplied in full color, one-color black and one-color white versions. Separate color versions for screen and print, along with horizontal, stacked and icon-only layouts, are common additions where the brand uses them.

Having a logo file is not the same as having rights to it

Being able to download a logo file, or receiving one from a designer, does not by itself grant permission to modify the artwork or use it freely. The logo may be a registered or unregistered trademark. Fonts used in it may carry their own license terms. Ownership of the artwork may depend on the contract with the designer. Confirm what you are allowed to change and where you may use it, whether through the brand owner's guidelines, a license or a design agreement.

Limits of this guidance

This overview reflects general, widely documented format characteristics. It is not based on inspection of any particular logo file or on testing of specific software. If you have a specific file or workflow, verify its actual contents and your tools' current documentation before relying on it for production.