How to Prepare a Logo for Clothing Printing

This is the chapter people dread, and it's the one that dissolves fastest once you understand it. You've got a logo. Somewhere. Maybe it's a crisp file from a designer, maybe it's a screenshot from your website, maybe it's a photo of the sign above your shop. And now a printer wants "print-ready artwork", and you're not sure whether what you have counts.

Here's the reassuring truth up front: getting a logo ready for printing is mostly about understanding a few simple ideas, and where your file falls short, a good printer fixes far more than beginners expect. This chapter, Chapter 8 of Making Merch People Actually Wear and the opening of Part 3, is for anyone holding a logo and wondering if it's good enough. New to the series? Chapter 1 has the full map.

Vector vs raster: the one idea that explains everything

Almost every logo file is one of two types, and understanding the difference explains nearly every artwork conversation you'll ever have with a printer.

Vector artwork is built from mathematical lines and shapes. Because it's instructions rather than fixed dots, it can scale from a business card to a banner and stay perfectly sharp. This is the gold standard for printing. Vector files usually end in .ai (Adobe Illustrator), .eps, .svg, or a .pdf that was saved from vector artwork.

Raster artwork is built from pixels, a fixed grid of coloured dots. Photos are always raster, and so are many logos. Raster is fine, as long as there are enough pixels for the size you're printing. Blow a small raster image up too big and you get the dreaded blur or "staircase" edges. Raster files usually end in .png, .jpg, or .jpeg.

The one-line takeaway: vector scales forever, raster has a limit. If you have a vector version of your logo, you're in great shape. If you only have raster, the question becomes "is it big enough?", which is the next idea.

Resolution: why your logo might print blurry

If your logo is a raster (pixel) image, its resolution decides how cleanly it prints. Resolution is simply how much detail the image holds, and there are two easy ways to think about it:

• Pixel dimensions, like 2000 x 2000, tell you how many dots make up the image. Bigger numbers mean more detail to work with.
• A quick sense check: if the image looks crisp when you zoom right in on your screen, it's probably got detail to spare. If it goes soft, fuzzy or blocky when enlarged, it will print that way too. The press can't invent detail that isn't there.

The classic trap is the website logo. Images on websites are deliberately small so pages load quickly, which makes them lovely on screen and hopeless for print. The same goes for a logo lifted from a social media profile, or a screenshot. They look fine at thumbnail size and fall apart when printed across a chest.

The fix, in order of preference: find the original file, ask whoever made the logo for a vector or high-resolution version, or send your printer what you have and ask honestly whether it's big enough. Which brings us to the golden rule.

The golden rule: send it, don't sit on it

Back in Chapter 1 we promised nobody needs to be a designer, and here's where that promise gets specific. The single biggest artwork mistake isn't sending the wrong file. It's sending nothing for weeks because you're convinced your file "isn't good enough".

Printers deal with imperfect files constantly. Tidying up artwork, cleaning up edges, recreating a simple logo as vector, checking whether an image is big enough: this is normal, everyday work, not a favour. You will almost never annoy a printer by sending a rough file and asking. You might well delay your own project by a month sitting on it in silence.

So: send the best version you have, mention if you can find the original, and ask. Worst case, they tell you what they need. Best case, what you have is fine.

A quick word on backgrounds

One small thing that trips people up: transparent backgrounds. If your logo is saved as a .jpg, it almost always has a solid white (or coloured) rectangle behind it, because .jpg can't store transparency. Printed as-is, that rectangle can show up on the garment.

A .png can store a transparent background, which is why it's often preferred for logos: the design floats free with no box around it. A vector file handles this cleanly too. If your only file is a .jpg with a background, don't panic, it's often easily removed, just mention it so your printer can sort it rather than being surprised by it.

What to actually send your printer

Pulling it together, here's the simple hierarchy, best first:

And two things that help every time: send the original if you can find it (not a version copied from a website or messaging app, which often strips quality), and tell your printer the garment and rough print size, because how a design is best prepared depends partly on where it's going and on the fabric, as Chapter 5 touched on.

Quick checklist: is my logo ready?

Common mistakes (and how to avoid them)

1. Sending a website or social-media logo. Deliberately low-detail, so it prints blurry. Fix: hunt down the original or a high-resolution version; ask the logo's creator if needed.

2. Sitting on the project because the file "isn't good enough". The costliest delay in merch, and usually unnecessary. Fix: send it and ask; imperfect files are routine.

3. Assuming a .jpg logo has no background. It almost always has a hidden white box. Fix: use a .png or vector, or flag the background so the printer removes it.

4. Enlarging a small image to "make it fit". Stretching pixels creates blur; it can't add detail. Fix: get a bigger or vector version rather than scaling a small one up.

5. Sending a photo of a logo. A snap of a sign or a printout is raster, angled and low-detail. Fix: track down the actual file; a photo is a last resort to identify the logo, not to print from.

6. Not mentioning the garment or size. Preparation can depend on where the design is going. Fix: tell your printer the product and rough placement, per Chapter 9.

FAQs

What file format is best for printing a logo?
A vector file (.ai, .eps, .svg, or vector .pdf) is ideal because it stays sharp at any size. A high-resolution .png is the next best thing and is often perfectly usable.

What does vector mean, simply?
Artwork made of lines and shapes rather than fixed dots, so it can be scaled to any size without going blurry. It's the format printers most like to receive.

My logo is only on my website. Is that enough?
Often not, because website images are deliberately small and low-detail. Find the original file or ask whoever created the logo for a high-resolution or vector version.

Why does my logo look blurry when printed?
Almost always because the image didn't have enough detail (resolution) for the print size, so the pixels became visible. A larger or vector version fixes it.

What's the difference between .png and .jpg for a logo?
A .png can have a transparent background, so the logo floats free; a .jpg always has a solid background behind it. For logos, .png (or vector) is usually preferable.

I only have a rough file. Should I wait until I get a better one?
No, send what you have and ask. Printers assess and tidy artwork all the time, and you'll get a clear answer far faster than by waiting in silence.

Can a printer recreate my logo if my file is poor?
Often yes, a simple logo can frequently be redrawn as clean vector artwork. Ask; it's a common request, and it turns a weak file into a future-proof one.

What's next in the book?
Chapter 9, which is print placement and sizing: now the file's ready, where does it go on the garment, and how big?