A logo that looks perfect on your screen can suddenly come out grainy, blurry or ragged when printed. That has almost always the same cause: the file supplied was a pixel file (JPG or PNG), while print work calls for a vector file. The difference between the two is fundamental, and understanding it saves you time, money and frustration.
File Preparation
4 min read
July 9, 2026
Making your logo print-ready: why a vector file makes all the difference
"Can you just grab this logo from our website?" It's a question we get regularly, and the answer is usually: better not to. We explain why a vector file matters so much for print work, and what you can do if you don't have one yet.
1
Pixels versus mathematical lines
A JPG or PNG is made up of a fixed grid of colour dots (pixels). Enlarge the image, and those dots simply get stretched along with it: the result is a grainy, "pixelated" image. A vector file works completely differently. It describes shapes as mathematical lines, curves and areas. Whether you put the logo on a business card or on a site sign 3 metres wide, the lines stay perfectly sharp, because they're recalculated every time instead of stretched.
2
Which file formats are vector?
The most common vector formats are AI (the working file for Adobe Illustrator), EPS and SVG. A PDF is a bit of a trap: a PDF can contain vector content, but it might just as easily contain only an embedded pixel image. So the file extension alone doesn't tell you everything.
- AI, EPS, SVG: virtually always vector
- PDF: can be vector, but not guaranteed
- JPG, PNG, GIF, BMP: always pixel files, never vector
3
I only have a PNG. What now?
No need to panic: this happens more often than you'd think, especially with logos made years ago by an old agency or an online tool. In that case, a designer can vectorise your logo: precisely rebuilding the image as a vector file based on the existing artwork. This is usually a limited, one-off cost, and afterwards you'll have a future-proof version of your logo for good.
Tip: keep the final vector file somewhere safe (for example also in the cloud). You'll need it for every future print or design project.
4
Do you always need a vector file?
Not necessarily. For small format printing such as business cards or flyers, a pixel file is often enough, as long as the resolution is high enough. For large format printing such as site signs, banners or roll-up banners, a vector file is virtually essential: those formats enlarge your logo dozens of times over, and every imperfection gets visibly magnified along with it.
Frequently Asked Questions
Vector files: your questions
What's the difference between a vector file and a JPG or PNG?
A JPG or PNG is made up of a fixed number of pixels and becomes grainy when enlarged. A vector file is made up of mathematical lines and shapes, and stays perfectly sharp at any size.
Which file formats are vector files?
The most common are AI (Adobe Illustrator), EPS and SVG. A PDF can contain either vector content or an embedded pixel image, so that's no guarantee on its own.
I only have a PNG of my logo, what now?
Then a designer can vectorise your logo: rebuilding it as a vector file based on the existing image. This is usually a one-off, limited cost.
Do I need a vector file for every type of print work?
For small format print such as business cards, a pixel file with sufficient resolution is often enough. For large format printing such as site signs or banners, a vector file is virtually essential.
Can I check myself whether my file is a vector file?
Zoom in on the file: do the lines stay perfectly sharp, even heavily magnified? Then it's vector. Does it become grainy or blurry? Then it's a pixel file.
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