Dupli is the largest envelope imprinter in the Northeast with printing plants in New York, Pennsylvania, and Connecticut. Envelopes are the history of our company. Remaining our largest business segment. We love them!
- 45+ Years of Envelope Expertise – Envelopes have been at the core of our business for more than four decades and remain our largest product line.
- Industry-Leading Jet Printing Capacity – One of the largest jet printing operations in the Northeast, built to handle high-volume projects with speed, consistency, and reliability.
- Printing & Converting Under One Roof – In-house offset printing and envelope converting give us greater control over quality, turnaround times, and even the most complex projects.
- Custom Envelope Capabilities – From large and custom-positioned windows to peel & seal, specialty papers, unique sizes, and custom finishes, we can produce envelopes to fit your exact needs.
- Three Locations, Greater Reliability – Facilities in New York, Pennsylvania, and Connecticut provide added production capacity, flexibility, and dependable service throughout the Northeast and beyond.
- Easy, Scalable Ordering – Online, on-demand, and API-driven ordering options make it easier to manage recurring orders, multiple locations, and versioned programs.
Jet Imprinting and Print & Convert serve different needs depending on speed, volume, and design requirements. Jet Imprinting is the faster and more cost-effective option for smaller runs (typically under 200,000), using pre-made envelopes to quickly get campaigns to market. In contrast, Print & Convert involves printing on flat stock and then forming envelopes, making it ideal for high-end projects that require superior color accuracy, detailed imagery, heavier ink coverage, and fully customized features like window placement, though it typically comes with longer production timelines.
Dupli works with organizations that rely on custom printed envelopes every day.
Whether you manage a high-volume mailing program, multiple locations, a franchise network, or a distributed sales team, our envelope printing and manufacturing capabilities are built to make ordering, production, and fulfillment easier.
- Online & API Ordering – Give branches, locations, franchisees, or sales reps an easy way to order custom envelopes through branded online portals or integrated procurement platforms.
- On-Demand Envelope Production – We process thousands of custom orders every day, helping reduce inventory requirements, waste, and the risk of obsolete materials.
- Inventory, Forecasting & Replenishment – When stocking makes sense, we combine demand forecasting with our 80,000 sq. ft. warehouse to keep frequently ordered envelopes ready to ship.
- Consistent Quality Across Every Run – Maintain consistent colors, branding, and envelope specifications across locations, production runs, and ongoing programs.
Whether you manage a national mail program, support multiple branches, or resell print as a trade partner, we can help you simplify your envelope supply chain and improve results.
