Logo File Formats Explained: The Complete Guide
In This Guide
Why Logo File Formats Matter
Your logo is not a single image. It is a collection of files, each optimized for a different context. The version that appears on your website is technically different from the version printed on a business card, which is different again from the version embroidered on a hat or etched onto a glass door. Each of these contexts has specific technical requirements, and the file format you choose determines whether your logo meets those requirements or falls short.
The most common mistake businesses make with logo files is treating them as interchangeable. A business owner receives a PNG from their designer, uses it everywhere, and wonders why the logo looks blurry on a trade show banner or why the printer requests a different file. The problem is not the logo itself. The problem is using a format designed for screens at a size designed for billboards. Every format has strengths and limitations, and understanding those boundaries is what separates professional brand management from amateur guesswork.
File formats also affect practical workflow. Some formats can be edited in common software, while others require specialized tools like Adobe Illustrator. Some preserve transparency, which is critical when placing a logo on colored backgrounds, while others flatten the background to white. Some are universally accepted by vendors, while others cause compatibility headaches. Knowing which format to send to which vendor saves time, avoids reprints, and prevents the kind of back-and-forth that slows down projects.
From an investment perspective, your logo files are business assets. A properly organized set of logo files in the right formats can serve your brand for years or even decades without needing to be recreated. A single low-resolution JPEG, by contrast, becomes a liability the moment your business grows beyond the scale at which that file was originally created. The time spent understanding file formats pays for itself many times over in avoided redesigns and production delays.
Vector vs Raster: The Fundamental Split
Every digital image falls into one of two categories: vector or raster. This distinction is the single most important concept in understanding logo file formats, because it determines whether your logo can scale infinitely or is locked to a fixed resolution.
Raster images, sometimes called bitmap images, store visual information as a grid of colored pixels. A standard photograph is a raster image. Each pixel is assigned a specific color value, and the image is defined by its total pixel dimensions, such as 1920 pixels wide by 1080 pixels tall. At their native resolution, raster images look sharp and detailed. The problem is that raster images cannot be made larger without losing quality. When you enlarge a raster image beyond its native dimensions, the software must invent new pixels to fill the gaps, which produces the familiar blurry, blocky, pixelated appearance. This is why a 200 by 200 pixel logo that looks fine as a website icon looks terrible when stretched to fill a poster.
Vector images take an entirely different approach. Instead of storing pixels, vector files store mathematical instructions that describe shapes, curves, colors, and positions. A vector circle is not a collection of colored pixels arranged in a circular pattern. It is a mathematical formula that says, in effect, draw a circle with this center point, this radius, this fill color, and this stroke weight. Because the image is described by math rather than fixed pixels, it can be rendered at any size without losing quality. The same vector logo file can produce a crisp 16 by 16 pixel favicon and a perfectly sharp 16 by 16 foot billboard, because the math is recalculated at whatever resolution is needed.
For logos specifically, vector is the gold standard for the master file. Your original, editable logo should always be in a vector format. Raster versions are then exported from the vector master at whatever sizes and resolutions are needed for specific applications. This workflow ensures that your logo can be adapted to any future use case, even ones that do not exist yet, without ever needing to be redrawn. The vector master is the source of truth from which all other versions derive.
There are situations where raster formats are the correct choice for a delivered logo file, particularly for web use where PNG files with transparency are the standard. But even in those cases, the raster file should be generated from a vector original. The vector file is the asset. The raster files are outputs.
Vector Logo Formats Explained
Four vector formats account for nearly all professional logo work: SVG, EPS, AI, and PDF. Each has a distinct role, distinct strengths, and specific situations where it is the best choice.
SVG (Scalable Vector Graphics)
SVG is the native vector format of the web. Developed by the World Wide Web Consortium (W3C) as an open standard, SVG files are written in XML, a text-based markup language that browsers can read and render directly. This makes SVG unique among vector formats because it does not require any plugin, application, or conversion to display in a web browser. Every modern browser has supported SVG natively since the early 2010s.
For logos on websites, SVG is the ideal format. The file renders at whatever resolution the screen requires, which means it looks perfectly sharp on standard displays, high-DPI Retina screens, and everything in between. A single SVG file replaces the need for multiple PNG files at different resolutions. SVG files are also typically very small, often just a few kilobytes, which makes them load faster than equivalent raster images and contributes to better page performance scores.
SVG files can also be styled and animated with CSS, which enables hover effects, color changes, and transitions directly in the browser without JavaScript. For interactive web applications, this capability makes SVG logos more versatile than any raster alternative. The format also supports accessibility features: because the underlying code is text-based, screen readers can extract information from properly structured SVG files.
The limitation of SVG is that it is primarily a web format. Print vendors rarely accept SVG files. Complex logos with detailed textures or photographic elements may also produce SVG files that are larger and more complex than necessary. For pure print work, EPS or PDF remain the standard delivery formats.
EPS (Encapsulated PostScript)
EPS has been the standard print-industry vector format for decades. Developed by Adobe in the 1980s as part of the PostScript page description language, EPS files encapsulate all the vector data, font information, and color specifications that a print device needs to reproduce a logo at any size.
When a sign shop, promotional products company, embroidery service, or commercial printer asks for your logo files, they are almost always expecting an EPS. The format is universally supported across the print industry software ecosystem, from professional prepress applications to industrial cutting machines. EPS files can be opened in Adobe Illustrator, CorelDRAW, and most other professional design applications.
EPS supports both CMYK and Pantone (spot) colors, which is critical for print accuracy. CMYK is the four-color process used by most commercial printers, while Pantone spot colors ensure exact color matching across different print runs and different vendors. A properly prepared EPS logo file includes the correct color specifications for the output method, whether that is process printing, spot color printing, or a combination of both.
The disadvantage of EPS is that it is not web-friendly. Browsers cannot display EPS files, and the format is overkill for screen-based applications. EPS files also tend to be larger than SVG files for equivalent content. For any application that is not print-related, other formats are more appropriate.
AI (Adobe Illustrator)
AI is the native file format for Adobe Illustrator, the industry-standard vector graphics editor. An AI file is your logo master source file, the fully editable original from which all other formats are exported. It preserves everything: layers, editable text, effects, color swatches, artboard settings, and the complete editing history of the design.
The AI file is the most important file in your logo package from an editing perspective. If you ever need to modify your logo, change a color, adjust spacing, update text, or create a new variation, the AI file is where that work happens. Without it, modifications require recreating the logo from scratch or performing workarounds that compromise quality.
The limitation of AI files is that they require Adobe Illustrator to open and edit. Some other applications can open AI files with partial compatibility, but full editing capability requires Illustrator itself. This means AI files are not suitable for sharing with vendors or partners who may not have Illustrator. For distribution, you export from the AI file to more universal formats like EPS, SVG, or PDF.
PDF (Portable Document Format)
PDF is the most universally accessible vector format. Developed by Adobe but now an open ISO standard, PDF files can be opened on virtually any computer, phone, or tablet without specialized software. When a PDF is exported from a vector source like Illustrator, it preserves the vector data, meaning the logo inside the PDF is fully scalable and print-ready.
The greatest strength of PDF is its universality. You can email a vector PDF logo to anyone, and they can open it, view it accurately, and even send it to a printer without needing any design software. This makes PDF the ideal format for sharing logo files with clients, partners, or vendors who need to view or use the logo but do not need to edit it.
High-quality vector PDFs are also accepted by most commercial printers as a production-ready format. Many designers now deliver PDF alongside or even instead of EPS for print workflows, since PDF supports the same CMYK and spot color capabilities while being easier for non-designers to preview and verify.
The important caveat with PDF is that not all PDFs are vector. A PDF can also contain raster images, and there is no way to tell from the file extension alone whether the vector data is preserved. A PDF created by exporting from Illustrator or saving from a vector source will be vector. A PDF created by scanning a document or exporting from a raster editor will be raster. Always confirm that your logo PDF is vector-based before relying on it for scalable reproduction.
Raster Logo Formats Explained
While vector files are the master format for logos, raster formats play essential roles in digital delivery. The key is knowing which raster format to use and at what resolution.
PNG (Portable Network Graphics)
PNG is the most important raster format for logo delivery. Its defining feature is support for transparency, which means the background behind your logo can be fully transparent rather than white or any other solid color. This is critical for placing logos on colored backgrounds, photographs, gradients, and any surface where a white rectangle around the logo would be unacceptable.
PNG uses lossless compression, which means the image quality does not degrade when the file is saved. Unlike JPEG, which discards data to reduce file size, PNG preserves every pixel exactly as created. This is important for logos because the sharp edges, solid colors, and precise shapes in a typical logo are exactly the kind of detail that JPEG compression tends to smear and degrade.
The practical limitation of PNG is resolution dependency. A PNG exported at 500 by 500 pixels will look sharp at that size or smaller but will lose quality if enlarged beyond those dimensions. For this reason, logo PNGs should be exported at the largest size you anticipate needing, and you should keep multiple sizes on hand for different applications: a large version for presentations and documents, a medium version for web use, and a small version for social media profile images and favicons.
JPEG (Joint Photographic Experts Group)
JPEG is the standard format for photographs and complex images with millions of colors and smooth gradients. It is not a good format for logos. JPEG uses lossy compression, which means it permanently discards image data to reduce file size. Each time a JPEG is saved, additional quality is lost. For photographs, this tradeoff is usually acceptable because the human eye does not easily detect small changes in photographic detail. For logos, the damage is obvious: the sharp edges that define letterforms and geometric shapes become blurry, and solid color areas develop visible compression artifacts, blocky distortions that look like digital noise.
JPEG also does not support transparency. A logo saved as JPEG will always have a solid background, usually white. This makes JPEG unsuitable for any application where the logo needs to appear on a non-white surface without a visible rectangular boundary.
There are limited situations where JPEG is acceptable for a logo: when the recipient specifically requires JPEG format, when the logo includes complex photographic elements that make PNG file sizes impractical, or when the logo will be used at a fixed size on a white background and quality loss is minimal. In all other cases, PNG is the superior raster choice.
TIFF (Tagged Image File Format)
TIFF is a high-quality raster format used primarily in print production and photography. TIFF files can be very large because they store uncompressed or losslessly compressed pixel data at full resolution, often at 300 DPI or higher. For logos, TIFF is occasionally requested by print vendors as an alternative to EPS when the vendor workflow is raster-based. A 300 DPI TIFF at the final print size will produce results comparable to a vector file for that specific application, though it cannot be scaled beyond its exported dimensions without quality loss.
WebP and AVIF
WebP, developed by Google, and AVIF, based on the AV1 video codec, are newer image formats designed to replace PNG and JPEG on the web with better compression and smaller file sizes. Both support transparency and offer significant file size savings compared to PNG. For logos on performance-sensitive websites, WebP in particular has gained wide adoption. However, both formats are raster, which means they share the same resolution limitations as PNG. SVG remains the preferred web logo format when the logo is purely vector-based, but WebP is a strong alternative when a raster version is needed for performance reasons.
Which Format for Which Situation
Choosing the right format comes down to answering two questions: where will this logo appear, and what does that context require?
For your website header, footer, and navigation, SVG is the best choice. It scales perfectly across all screen sizes, loads quickly, and looks sharp on high-DPI displays. If SVG is not an option due to CMS limitations or the complexity of the logo, use a high-resolution PNG with transparency.
For social media profiles and cover images, PNG at the exact dimensions each platform specifies is the standard. Each platform has its own size requirements, and uploading a correctly sized PNG avoids the automatic resizing that platforms apply, which often introduces quality loss. Keep in mind that some platforms compress uploaded images further, so starting with the highest quality PNG minimizes the cumulative degradation.
For business cards, letterheads, and other printed stationery, EPS or vector PDF in CMYK color mode is the standard. Your print vendor prepress department will use this file to integrate your logo into the layout at whatever size the design requires. If your brand uses specific Pantone colors, the EPS should include the Pantone color definitions.
For large-format printing like banners, trade show displays, vehicle wraps, and signage, vector formats are essential. The physical output sizes for large-format work make raster artifacts immediately visible. An EPS or vector PDF ensures the logo prints sharply at any scale, whether it is a small label or a building-sized wall graphic.
For embroidery and merchandise, the vendor typically needs an EPS or AI file. Embroidery machines and screen-printing equipment use the vector outlines to generate stitch paths or screen separations. Raster files do not provide the clean edge data these production methods require.
For email signatures, PNG is the standard because email clients have inconsistent support for SVG. Use a PNG with a transparent background, sized to the specific pixel dimensions your email template requires, usually between 200 and 400 pixels wide.
For presentations in PowerPoint or Google Slides, either SVG or high-resolution PNG works well. SVG is increasingly supported in modern presentation software, but PNG with transparency remains the safer choice for cross-platform compatibility.
Logo Formats for Print Production
Print production has specific technical requirements that web and screen formats do not address. Understanding these requirements prevents costly mistakes and reprints.
The most important print-specific concept is color mode. Screens display color using the RGB model (red, green, blue light), while most commercial printers use the CMYK model (cyan, magenta, yellow, black ink). A logo that looks vivid on screen in RGB may appear duller when converted to CMYK, because the CMYK color gamut is smaller than RGB. Professional logo files for print should be defined in CMYK from the start, not converted at the last minute, so the designer can adjust colors to look their best within the CMYK range.
Pantone spot colors are another print-specific consideration. Pantone is a standardized color matching system where each color has a unique reference number. When a brand specifies its logo color as Pantone 186 C, for example, any printer anywhere in the world can mix ink to match that exact shade. Spot color printing costs more than CMYK process printing because it uses premixed inks, but it guarantees color consistency across all printed materials. Many brands specify both Pantone and CMYK values: Pantone for critical applications like packaging and stationery, CMYK for everyday printing.
Resolution matters for any raster elements in print. The standard for commercial printing is 300 DPI (dots per inch) at the final printed size. A logo that will print at 4 inches wide needs to be at least 1200 pixels wide (4 inches multiplied by 300 DPI). Large-format printing like banners and signs uses lower DPI requirements, typically 72 to 150 DPI, because these items are viewed from a distance. But even in large format, vector files are preferred because they eliminate any resolution concerns entirely.
Bleed and safe zones are production requirements that affect how logo files are positioned in print layouts. Bleed is extra space beyond the trim line that ensures printed ink extends to the edge of the paper after cutting. Safe zones are interior margins where critical content like logos should be placed to avoid being cut off. These are layout concerns rather than file format concerns, but your logo files need to be flexible enough to position correctly within these constraints, which is another argument for vector formats that can be placed precisely at any scale.
Logo Formats for Digital and Web
Digital applications prioritize file size, rendering speed, and display quality across variable screen sizes and resolutions. The priorities are different from print, and the optimal formats reflect those differences.
For websites, the performance implications of logo formats are measurable. Google Core Web Vitals, the metrics that influence search rankings, include Largest Contentful Paint (LCP), which measures how quickly the largest visible element loads. If your logo is the largest element above the fold, its file format and size directly affect your LCP score. SVG files are typically 2 to 10 kilobytes for a logo, while equivalent PNG files at high resolution can be 50 to 200 kilobytes. That difference translates directly to faster load times and better performance scores.
SVG also eliminates the need to manage multiple image sizes. With responsive web design, the same logo may need to appear at 40 pixels tall in a mobile header and 120 pixels tall on a desktop page. A single SVG file handles both without any loss of quality. Achieving the same result with PNG requires generating and serving multiple sizes using srcset attributes or CSS media queries, which adds complexity to the codebase.
For favicons, the traditional approach used ICO files containing multiple sizes (16x16, 32x32, 48x48). Modern best practice is to use SVG for the favicon in browsers that support it, with a PNG fallback for older browsers. An SVG favicon scales perfectly to any size the browser renders, from the tab bar to the home screen icon on a mobile device.
For mobile applications, logos are typically delivered as PNG files at specific sizes for each platform. iOS and Android have different requirements for app icons, splash screens, and in-app branding, each with multiple size variants to support different device resolutions. The source for all these exports should be a vector master file, with each raster variant exported at the exact dimensions the platform requires.
Color mode for digital applications is RGB. All screens use RGB to display color, and delivering a logo in CMYK for screen use results in inaccurate, washed-out colors. Professional logo packages include both RGB versions for digital use and CMYK versions for print, either as separate files or as color mode options within the master vector file.
What a Complete Logo Package Includes
A complete logo file package should prepare your brand for any application you will encounter, both today and in the foreseeable future. At minimum, a professional logo delivery should include the following files.
The master vector file, typically in AI format, is the fully editable source. This is the file your designer (or a future designer) will open to make modifications, create new variations, or export new formats. It should include all layers, editable text, and organized artboards. If you do not use Adobe Illustrator, ask for the master file in an equivalent native format such as Affinity Designer .afdesign or CorelDRAW .cdr.
An EPS file for print distribution. This should be a clean, outlined vector file (with text converted to outlines so fonts are not required) in CMYK color mode. Include Pantone color references if your brand uses specific spot colors.
An SVG file for web use. This should be a clean, optimized vector suitable for embedding in websites. Unnecessary metadata, hidden layers, and editor-specific data should be stripped to minimize file size.
A vector PDF for universal sharing. This lets anyone view and print the logo without specialized software. The PDF should preserve the vector data so it remains scalable.
PNG files at multiple resolutions with transparent backgrounds. Common sizes include: a large version (2000 to 4000 pixels wide) for presentations and documents, a medium version (500 to 1000 pixels wide) for general digital use, and a small version (200 to 300 pixels wide) for social media and small applications. Each should be in RGB color mode with a transparent background.
Color variations are also part of a complete package. Your logo should be delivered in its full-color version, a single-color (black) version, and a reversed (white) version for use on dark backgrounds. Each variation should exist in all the formats listed above, organized in clearly labeled folders so anyone in your organization can find the right file for any situation.
A well-organized logo package typically follows a folder structure that separates formats by type (vector, raster) or by use case (print, web, social). Clear file naming that includes the color variation, format, and size makes the package self-documenting. When a team member or vendor needs a specific file, they should be able to find it in seconds without asking the designer.