Lithographic (litho) printing is the gold standard for high-volume projects, delivering superior quality, vibrant colours, and unbeatable cost-effectiveness for large runs. Its ability to produce consistently flawless results makes it the top choice for brochures, catalogues, and marketing materials. However, the path to a perfect print run is filled with potential pitfalls. Simple, avoidable mistakes can quickly turn a project into a costly disaster, wasting your budget and causing significant delays.
This guide will walk you through the seven most common litho printing mistakes we see. By understanding these errors and how to prevent them, you can ensure your next print job is a resounding success from start to finish.
Mistake 1: Incorrect Artwork & File Setup
The vast majority of printing errors originate not on the press, but within the digital artwork file itself. Getting the setup right is the single most important step in the entire process. Here are the three most critical areas to check before you submit your design.
Using Low-Resolution Images
Image resolution, measured in Dots Per Inch (DPI), determines the clarity and sharpness of a printed image. For litho printing, the industry standard is a resolution of 300 DPI. Using images pulled from the web or a mobile phone, which are often a low 72 DPI, will result in a final product that looks pixelated, blurry, and unprofessional. Always use high-resolution photographs and graphics to achieve the crisp, clean finish your brand deserves.
Designing in the Wrong Colour Mode (RGB Vs. CMYK)
Digital screens create colour by mixing Red, Green, and Blue light (RGB). This is why colours look so bright and vibrant on your monitor. Printing presses, however, use four ink colours: Cyan, Magenta, Yellow, and Key (Black), a colour model known as CMYK. If you design in RGB, the colours will shift during the conversion to CMYK, often appearing duller or different from what you expected. To ensure accurate colour reproduction, all artwork for litho print must be designed or converted to the CMYK colour mode.
Forgetting Bleed and Safe Zones
When paper is trimmed to its final size after printing, tiny mechanical shifts can occur. To prevent unsightly white slivers along the edge of your design, you need to add a bleed. This is an extra margin, typically 3mm, where your background colour or image extends beyond the final trim line. Equally important is the safe zone, an area inside the trim line where all critical text and logos must be placed. Keeping important elements within the safe zone ensures they won't be accidentally cut off during finishing.
Mistake 2: Choosing the Wrong Paper Stock
The paper you choose has a huge impact on the final product's look, feel, and durability. A glossy stock can make colours pop for a vibrant flyer, while a silk finish offers a more sophisticated, premium feel for a corporate brochure. An uncoated stock provides a natural, rustic texture perfect for stationery.
Choosing the wrong paper can undermine your design's intent. Consider the purpose of your printed material. Will it be handled frequently? Does it need to convey luxury? If you are unsure, always ask your printer to send a sample pack. Feeling the paper in your hands is the best way to make the right decision.
Mistake 3: Overlooking Print Finishes
Special finishes can elevate a good design into a great one. A sleek lamination adds durability and a professional sheen, while a targeted spot UV can make your logo or a key image stand out with a high-gloss texture. Other options like foiling can add a touch of luxury.
The mistake is treating these as an afterthought. Finishes are an integral part of the printing and production process and cannot be added once the job is complete. Plan for any special finishes from the very beginning and include them in your initial quote and specifications.
Mistake 4: Failing to Proofread Meticulously
Once a litho job is on the press, it is final. There is no "undo" button. A small typo in a headline, an incorrect phone number, or a wrong date can render thousands of expensive prints completely useless. The cost of reprinting can be significant.
Before submitting any file, proofread it meticulously. Then, have a colleague proofread it. Finally, have a third person check it one last time. Scrutinize every word, every number, and every detail to ensure it is 100% correct.
Mistake 5: Ordering the Wrong Quantity
This mistake cuts both ways. Because of the setup costs involved in litho printing, ordering too few copies can be inefficient.
Conversely, ordering too many copies just to get a lower per-unit price can be wasteful. If your marketing message changes or contact details become outdated, those excess prints become obsolete. Realistically assess your needs for the next 6-12 months and order a quantity that makes sense for your business.
Mistake 6: Not Communicating with Your Printer
Your printer is not just a supplier; they are an expert partner who wants your project to succeed. The biggest mistake is failing to tap into their knowledge. If you are unsure about file setup, paper stock, or the best finish for your project, just ask.
A good printer can offer invaluable advice that saves you time and money. Be open about your goals, your budget, and any concerns you have. Clear communication is the key to a smooth process and a final product that exceeds your expectations.
How to Ensure Your Litho Print Order is Perfect
Avoiding costly errors comes down to careful planning and clear communication. By double-checking your artwork, choosing the right materials, proofreading every detail, and working closely with an expert printing partner, you can guarantee a flawless result every time.
Ready to start a print project without the stress? Our team of experts is here to guide you through every step of the process. Contact SOS Systems today for a free quote or expert advice on your next litho print job.
FAQs
What is the difference between litho and digital printing?
Litho printing uses wet ink and printing plates, making it ideal for high-volume jobs (typically 500+ copies) where quality and colour consistency are paramount. Digital printing uses toner or inkjet technology and is better suited for short runs, personalised prints, and projects requiring a very fast turnaround.
How much bleed do I need for my print design?
The industry standard for bleed is 3mm on all sides of your artwork. However, this can sometimes vary. It is always best to confirm the exact bleed requirements with your specific printer before you finalise your design.
Why does my print colour look different from my screen colour?
This is due to the difference between the RGB (Screen) and CMYK (print) colour models. Your screen creates colour with emitted light, while a printed page shows colour by reflecting light off the ink. To get the most accurate colour match, always design in CMYK and, for critical jobs, request a physical hard copy proof.
