Getting artwork onto a flexible packaging press starts long before the first print run. It starts with clean, correctly built files. This guide walks brands and designers through creating print-ready files for commercial and flexible-packaging printing, covering software, color, resolution, bleed, fonts, images, and file format so your artwork reaches our presses ready to print.
What Is a Print-Ready File?
A print-ready file is a digital artwork file in which every technical specification is already correct, so it can go to press without changes. That means the right color mode, high enough resolution, proper bleed, outlined fonts, and embedded images all handled before submission.
When a file is truly print-ready, our pre-press team (the step between artwork approval and printing) can move it forward without sending it back for fixes. That keeps your project on schedule and your color and detail true to your design.
Start With the Right Software
We recommend building packaging artwork in Adobe Illustrator, a vector-based design program. Vector tools let you scale artwork to any package size while keeping lines and type crisp.
Photoshop is a raster program, meaning it works in pixels rather than scalable shapes. It’s a strong tool for photo editing, but it rasterizes artwork, which can soften edges and text when scaled for print. Use it to prepare images, then place those images into your Illustrator file.
Build Your Artwork in Vector Graphics
Vector graphics are built from mathematical paths, so they hold their quality at any size, from a small sachet to a large stand-up pouch. Enlarge a vector logo and its edges stay sharp.
Raster (pixel-based) images work differently. Each image has a fixed number of pixels, so scaling it up forces those pixels to stretch, producing the blurry, jagged look known as pixelation.
For that reason, build logos, type, shapes, and line art as vectors whenever you can. Reserve raster images for photography and detailed textures, and confirm their resolution before you place them (more on that below).
Set Your Color Mode to CMYK
Design your packaging files in CMYK (cyan, magenta, yellow, black), the color model digital and commercial presses use. Screens display in RGB (red, green, blue), which can render brighter, wider-gamut colors than a press reproduces.
If you design in RGB and submit that file, colors can shift during conversion to CMYK, so what you saw on screen may not match the printed result. Setting your document to CMYK from the start keeps your on-screen preview closer to the final print.
If your brand relies on exact colors, identify your spot or Pantone colors clearly in the file. Naming them helps us match critical brand colors accurately.
| Color Model | Best For | Use in Packaging Files |
|---|---|---|
| CMYK | Printed output | Yes — design in CMYK |
| RGB | Screens and displays | No — convert before submitting |
Check Your Resolution
Any raster or embedded image in your file should be at least 300 DPI (dots per inch) at its final printed size. That resolution gives the press enough detail to reproduce images sharply.
Images below 300 DPI can print blurry or pixelated, and enlarging a low-resolution image does not add detail back. Check resolution at the actual size the image will appear on the package, not at a reduced preview size.
Add Bleed, Trim, and Safe Zones
Presses print on material slightly larger than your finished package, then cut it down. Building in bleed, trim, and safe zones keeps your artwork clean through that process.
Set up your file with these three areas and include crop marks (thin lines that show where the material is cut). Together they prevent white edges and clipped content.
Bleed vs. Trim vs. Safe Zone
- Bleed: Extend any artwork or background that runs to the edge about 0.125 in past the trim line, so no white slivers appear if the cut shifts.
- Trim line: The line where the finished package is cut to its final dimensions.
- Safe zone: Keep key text, logos, and barcodes inside this inner margin so nothing important gets cut off.
Outline Your Fonts
Before submitting, convert all type to outlines, which turns your text into vector shapes rather than editable characters tied to a font file. Outlined text renders correctly on any system, even one that doesn’t have your fonts installed.
Without outlined fonts, a missing typeface can reflow or substitute your text during pre-press, changing how your design looks. Keep an editable backup copy for yourself, then outline the version you send.
Embed Your Images
Embed every image directly in your file rather than linking to it. A linked image points to a separate file, so if that file doesn’t travel with the artwork, it drops out or shows as a low-resolution placeholder.
Embedding stores the full image inside the document, so your file stands alone and arrives complete. This step prevents missing-image errors that stall pre-press.
Choose the Right File Format
Submit your artwork as a print-ready PDF, ideally saved to the PDF/X standard built specifically for reliable print output. A print-ready PDF preserves your color, fonts, and layout in one dependable package.
Native vector formats such as AI (Adobe Illustrator) and EPS are also accepted. Whichever you choose, flatten transparency (merge layered transparent effects into a single layer) so effects print as intended.
Avoid sending a standalone JPG or PNG as your final artwork. These raster formats are often lower resolution and lack the print settings a press needs.
Avoid Common Print File Hang-ups
Most delays trace back to a short list of file issues. Run through this checklist before you submit:
- Missing fonts: Outline all type so text can’t reflow or substitute.
- Unembedded or low-res images: Embed every image and keep it at 300 DPI or higher at final size.
- RGB color: Convert your document to CMYK before submitting.
- No bleed: Add about 0.125 in of bleed and keep key content in the safe zone.
- Wrong file format: Send a print-ready PDF (PDF/X) or a vector AI/EPS file, not a standalone JPG or PNG.
Conclusion
Creating print-ready files comes down to a repeatable routine: build in vector, design in CMYK, hit 300 DPI, add bleed and safe zones, outline fonts, embed images, and export a print-ready PDF. Clear those steps and your artwork moves to press without back-and-forth.
When your files are ready, we’re ready to print. See what your custom flexible packaging will cost and take the next step with Get Pricing.