Preparing Logo Artwork for Custom Cases: Vector Files, Pantone and Print Limits

Quick Summary

• Send a vector logo file. AI, EPS, SVG or a PDF exported from design software all work. Convert the text to outlines first.
• A JPG or PNG saved inside an .ai file is still a raster image. It will not scale cleanly.
• Give exact Pantone references with the suffix, such as C for coated or U for uncoated. The same number looks different on each.
• Standard CMYK printing cannot reach every Pantone colour. Neons and metallics are the usual problem.
• Fine lines, tiny text, gradients and shadows behave differently on leather, neoprene and hard plastic. Debossing and embroidery need a simpler version of the logo.
• Always approve a physical sample. A screen cannot show you true print colour on a real material.

Most delays in a custom case order have nothing to do with the case. They start with the logo.

Someone sends a small PNG copied from the website. Or a PDF that turns out to be a photo of the logo. The supplier asks for a better file. The marketing team hunts for the brand folder. A week slips by.

Getting your logo artwork for custom cases right first time is simple once you know what printers need. This guide covers file types, Pantone colours and the limits of printing on real case materials.

Vector vs Raster: What Is the Difference?

A vector file stores your logo as maths-based paths. It scales from a phone case to a banner with no loss of sharpness. A raster file stores the logo as a grid of pixels. Enlarge it and the edges blur or turn jagged.

Suppliers ask for vector artwork for printing, debossing and embroidery setup. Every edge stays crisp, and every colour area is clearly defined.

How to Check if a File Is Really Vector

A file extension proves nothing on its own. Place a JPG in Illustrator, save it as .ai, and it is still a pixel image.

Try these quick checks:

1. Zoom in to 800 percent or more. Vector edges stay sharp. Raster edges turn blocky.
2. In Illustrator, switch to Outline view (View, then Outline). Vector art shows clean path lines. A placed image shows as an empty box with an X.
3. Try to select a single letter or shape. If the whole logo moves as one rectangle, it is probably an embedded image.

Prepare the File Before You Send It

• Convert text to outlines: In Illustrator, select the text and use Type, then Create Outlines. This stops the printer’s computer swapping your font.
• Expand strokes: Thin outlines can shift when resized. Expanding turns them into filled shapes.
• Delete hidden layers and stray points: Leftover objects sometimes print.
• Use solid colour fills: Set each colour as a named Pantone swatch where possible.
• Include a one-colour version: You will need it for debossing, embossing, foil or embroidery.
• Label files clearly: For example: brandname_logo_fullcolour_pantone.ai and brandname_logo_onecolour.ai.

Pantone Basics for Case Printing

The Pantone Matching System (PMS) gives each spot colour a number and a set ink formula. It exists for one reason. A designer in one country and a factory in another can then mean exactly the same colour.

Coated vs Uncoated: Why the Suffix Matters

The Pantone Formula Guide shows every spot colour on both coated and uncoated paper. The same ink looks brighter and crisper on coated stock. On uncoated stock it looks softer, because the surface soaks up more ink.

That is why “Pantone 286” is not enough. Say “Pantone 286 C” or “Pantone 286 U”. Most brand guidelines list the coated version for print work.

Pantone vs CMYK

Full-colour printers build every shade from four inks: cyan, magenta, yellow and black. CMYK covers a wide range, but not every Pantone colour. Bright oranges, vivid greens, neons and metallics often sit outside it.

If your case will be printed in CMYK, ask for the closest match. Pantone’s Color Bridge Guide shows each spot colour beside its CMYK version. You can see the shift before production starts.

Metallic Pantone colours cannot be reproduced with standard CMYK at all. They need metallic ink or foil stamping.

A Note for Adobe Users

In late 2022, Adobe dropped most preloaded Pantone libraries from Photoshop, Illustrator and InDesign. Its licensing deal with Pantone had changed. Full library access in Creative Cloud now comes through Pantone Connect.

So if an older file shows odd swatch colours, check the Pantone references against your brand guide before you send it.

Why the Material Changes the Colour

Pantone guides are printed on paper. Cases are made from neoprene, PU leather, polycarbonate, silicone and fabric. Each one takes ink differently.

• Dark base materials need a white underlayer, or printed colours look muddy. UV printers can lay down white ink first.
• Textured surfaces like neoprene and canvas soften fine edges.
• Glossy hard shells make colours look richer than a matte finish.
• Coloured materials can be Pantone-matched themselves. That often looks cleaner than printing a large colour block.

This is why a physical sample matters more than any on-screen proof.

Print Methods and What Each Can Handle

For a deeper comparison, see our guide on embroidery, print or emboss for laptop sleeves.

Print Limits That Catch People Out

Every supplier and machine has its own tolerances. Treat the points below as common starting points. Always ask for exact minimums before you finalise artwork.

• Hairline strokes: Many printers ask for lines no thinner than about 0.25 pt for flat printing. Debossing and embroidery need much heavier lines.
• Tiny text: Taglines and legal lines below about 6 pt often fill in or break up. Textured materials make this worse.
• Gradients: Screen printing and debossing cannot show smooth gradients. You need a flat-colour version.
• Drop shadows and glows: These are raster effects. They may print as a blurry box or vanish.
• Reversed text: Thin white text on a dark background tends to close up. Thicken it slightly.
• Edges and cutouts: Keep logos clear of seams, curved corners, camera holes and hinges. On a phone case, the camera block shifts your “centre” point.

Example Scenarios

These illustrative examples show how common artwork issues get solved.

A university with a detailed crest: The crest carries fine lettering around a shield. Debossed on a leather tablet folio, that text would blur. So the design team draws a simpler shield mark for the deboss. The full crest stays on printed hard shells.

A tech company with a neon green brand colour: Their green sits outside CMYK, so a printed shell would look dull. They have two options. Pantone-match the case material itself, or accept a close CMYK match after seeing both on a sample.

A law firm with a gold logo: Gold ink on paper looks flat and brown on a black case. Foil stamping on PU leather gives the metallic look they want.

Artwork Submission Checklist

1. Send vector files: AI, EPS, SVG or a vector PDF.
2. Convert all text to outlines and expand strokes.
3. List Pantone colours with the C or U suffix.
4. Include a one-colour version of the logo.
5. Share your brand guidelines, including clear space rules.
6. Tell the supplier the case material and branding method you want.
7. Ask for minimum line weight and text size for that method.
8. Approve a digital proof, then a physical sample.

What Happens After You Send Your Files

A good supplier checks your artwork against the product template and flags any problems. Then it sends a digital proof showing size and placement. Once you approve that, a physical sample follows. Only then can you judge colour and texture in real light.

CustomLogoCases has an in-house design team that works on artwork and placement with you. Every order includes a production sample to approve before the full run. If your file is not quite print-ready, that is the stage to fix it. You can request pricing and artwork help at any point.

Frequently Asked Questions

What file format is best for logo printing on cases?

A vector file is best. AI and EPS are the most widely accepted. SVG and PDFs exported from design software also work. Convert the text to outlines first.

Can you print a JPG or PNG logo on a case?

Sometimes. A high-resolution raster file can work for full-colour UV or sublimation printing. It has to be large enough at the final print size. For screen printing, debossing and embroidery, the logo usually needs redrawing as vector art.

What is the difference between Pantone C and U?

C stands for coated and U for uncoated. They show the same ink on glossy coated paper and on absorbent uncoated paper. Coated versions look brighter and sharper. Always include the suffix when you name a colour.

Will my Pantone colour match exactly on a case?

It can get very close. Materials, textures and print methods each shift colour a little. Neons and metallics are the hardest to match. A physical sample is the only reliable check.

How small can a logo be on a phone or tablet case?

It depends on the method and material. Printed logos hold more detail than debossed or embroidered ones. Keep text large, strokes bold and the design simple. Then ask your supplier for their minimums before you finalise.

Final Thoughts

Clean artwork saves days on every order. Send vector files and name your Pantone colours properly. Keep a simple one-colour version ready, and respect the limits of each material. Then check it all on a real sample.

Planning your next branded order? Browse custom laptop sleeves or custom iPad cases. The CustomLogoCases team can review your files before anything goes to production.

Bhushan Lele

Bhushan spent the last 15+ years building businesses and learning what really matters to customers. At Custom Logo Cases, we help brands turn everyday tech accessories into high-quality, on-brand marketing tools.