Artwork Checklist: How to Prepare Print-Ready Sign Files

Clean, print-ready files are the fastest way to a good-looking sign and a proof that comes back right the first time. Here's what your printer needs from you, and a pre-flight checklist to run before you hit send.

Vector vs. raster artwork

There are two kinds of artwork files, and knowing which one you have saves a lot of back-and-forth.

• Vector artwork is built from shapes and paths, not pixels. It can scale to any size without getting blurry. Logos, text, and simple graphics made in programs like Adobe Illustrator are usually vector. Common vector formats include AI, EPS, SVG, and many PDFs.
• Raster artwork is made of pixels. Photos and most images from the web, a phone, or a screenshot are raster (JPG, PNG, and similar). Stretch a raster image too far and it turns soft or blocky.

For signs, vector is best for text and logos. If your logo only exists as a small JPG from your website, it's worth tracking down the original file from whoever designed it. If that's not possible, it can often be redrawn as vector.

Resolution at full size

When raster images are part of your design, what matters is resolution at the final printed size. Large-format prints like yard signs and banners are seen from a distance, so they don't need the very high resolution of a magazine. Artwork at roughly 100 to 150 ppi at full size is usually adequate for large-format work.

Here's the catch: a file that looks sharp on your screen can be far too small for a sign. To check, set your document to the actual sign dimensions (for example, 18" x 24") and look at the effective resolution of each image. If it's well below 100 ppi at full size, expect visible softness.

Color mode: CMYK, spot colors, and why colors shift

Why screen colors don't match print

Your screen makes color by mixing light (RGB: red, green, blue). Printers make color with ink, usually CMYK (cyan, magenta, yellow, black). The range of colors each can produce is different. Some very bright, saturated screen colors, especially electric blues, neon greens, and vivid oranges, simply can't be reproduced exactly with ink. When an RGB file is converted for print, those colors shift toward the nearest printable match, often looking a little duller.

Screens also vary in brightness and calibration, so the same file can look different on your laptop and your phone. Treat on-screen color as a preview, not a promise.

What to do about it

• Design in CMYK when you can, so you see a closer approximation of the printed result while you work.
• Use spot colors for brand-critical colors. If you have a specific brand color, such as a Pantone color, include the reference so the printer can match it as closely as their process allows.
• Ask for a printed proof when exact color really matters.

Bleed and safe zone

Signs are printed and then cut to size, and cutting has a small margin of variation. Two settings protect your design from that:

• Bleed: extend any background color or image about 1/8" past the trim edge on every side. That way, if the cut lands slightly off, you won't see a thin white sliver along the edge.
• Safe zone: keep important text and logos at least about 1/2" inside the trim edge. Anything closer risks getting clipped, or hidden by a frame on a real estate sign.

Printers' exact requirements vary, so check the specs for your order, but those numbers are common norms. If you're not sure whether your file has bleed, it probably doesn't.

Outlined fonts and file formats

Outline or embed your fonts

If the printer doesn't have the exact font you used, their software will swap in a substitute, and your layout can shift or break. To prevent that, convert text to outlines (sometimes called "create outlines" or "convert to curves") or make sure the fonts are fully embedded in your PDF. Keep an editable copy for yourself before outlining, since outlined text can't be retyped.

File formats printers like

Proofing tips that catch real mistakes

Most reprints come from simple errors nobody caught. A few habits fix that:

• Print it at reduced scale. Print your design on a sheet of letter paper. It won't match the final colors, but it shows hierarchy and balance in a way a screen doesn't.
• Read it from across the room. Tape the printout to a wall and step back. If the main message doesn't jump out, it won't from the street either. Our yard sign design tips explain why.
• Spellcheck names, dates, phone numbers, and URLs by hand. Software spellcheck doesn't know your candidate's name or your phone number. Read each one aloud, digit by digit, and have a second person check them too.
• Check required text. Political signs often need a "Paid for by" disclaimer. Federal candidates should review the FEC's advertising and disclaimer guidance, and state and local races should check their state's rules. This is general information, not legal advice.
• Preview it in place. Try our sign preview tool to see how it reads at a glance.

Setting up two-sided files

For double-sided signs, make it impossible for anyone to mix up the sides:

• If both sides are the same, say so clearly in your order. One file is usually enough.
• If the sides are different, supply them as a two-page PDF or two separate files named clearly, such as "smith-18x24-FRONT.pdf" and "smith-18x24-BACK.pdf."
• Build both sides at the same size, orientation, bleed, and safe zone.
• For directional signs, double-check arrow direction on each face so both point toward the destination once the sign is standing.

Final pre-flight checklist

1. Document set to the final sign size and orientation.
2. Text and logos are vector wherever possible.
3. Any raster images are roughly 100 to 150 ppi or better at full size.
4. Color mode is CMYK, with spot color references noted for brand colors.
5. About 1/8" bleed on all sides; important content about 1/2" inside the trim.
6. Fonts outlined or fully embedded.
7. Saved as a print-ready PDF (PDF/X preferred) or another format your printer accepts.
8. Names, dates, phone numbers, and URLs checked by two people.
9. Required disclaimers included for political signs.
10. Front and back clearly labeled, or noted as identical.
11. File names include the job name, size, and side.

Not a designer? No problem. Our design services team can build print-ready files from your idea, or clean up the files you have. Choosing a size first? Start with the yard sign size guide.

MySignPal guides are general information to help you plan. Print specs vary by printer, and sign rules vary by city, county and state; confirm local requirements before you install.