Custom Poster Printing
Create large-format posters in the dimensions your display, campaign, or event requires. We help businesses produce attention-getting graphics that support a consistent brand presentation.
Make a stronger visual impact with custom-size large format posters printed for campaigns, events, retail displays, and branded interiors. Dupli-Group combines heritage craftsmanship with modern digital capabilities to help Chicago-area organizations produce clear, color-conscious graphics in the formats their spaces require. Bring us a finished file or a concept, and we’ll help make your message ready to be seen.

Custom poster production for promotional displays, events, branded environments, and short-run marketing needs.
Create large-format posters in the dimensions your display, campaign, or event requires. We help businesses produce attention-getting graphics that support a consistent brand presentation.
Use wide-format printing for posters and display graphics designed to command attention in retail spaces, offices, venues, and public-facing business environments.
Add laminating to help protect printed posters from handling, moisture, and everyday wear while preserving the appearance of your large-format graphics.
A poster should fit both the message and the space where people will see it. Dupli-Group provides custom-size large format printing for businesses, designers, and organizations that need impactful visual communication without unnecessary volume. From a single promotional graphic to a coordinated display, our wide-format capabilities support flexible production, crisp presentation, and brand consistency. Chicago clients also benefit from a print partner grounded in decades of local graphic-design experience.

A dependable print partner for projects that need care, flexibility, and visual consistency.
Approximately 80 years of quality-driven printing experience built in Chicago’s graphic design community.
Early HP Indigo adoption supports flexible, short-run, on-demand print production for changing needs.
FSC environmentally sustainable printing and 100% soy ink usage support more responsible printed materials.
Chicago-area clients can coordinate posters, signs, and laminated graphics with one experienced provider.
Generations of craftsmanship, innovation, and print-focused service.

Founder
Mac McCormack founded Dupli-Graphic, now known as Dupli-Group, in Chicago just after World War II. Returning home from military service, Mac carried with him the discipline and dedication he learned while serving his country, and he channeled that work ethic into building a small, quality-driven print business from the ground up. As Founder, he established the core principles that still define the company today: meticulous attention to detail, honest craftsmanship, and a genuine commitment to customer satisfaction. Under his leadership, Dupli-Graphic quickly earned a respected reputation within the Chicagoland graphic design community and the broader Illinois printing industry. Mac's legacy as a hands-on, quality-focused founder laid the foundation for two generations of family leadership and nearly 80 years of trusted service to Chicago area businesses.

Second-Generation Leader
Walter "Wally" McCormack is the second-generation leader of Dupli-Group, building on the foundation established by his father, founder Mac McCormack. Taking the helm of the family business, Wally recognized the need to modernize and expand the company's capabilities to meet the evolving demands of the Chicagoland graphic design community. He spearheaded the company's transition into digital printing, direct mail, and wide-format services, and became a true industry pioneer by leading one of the first adoptions of the HP Indigo press in Illinois, enabling flexible, short-run, on-demand digital printing. Wally also championed environmental responsibility, guiding Dupli-Group to become an early adopter of Forest Stewardship sustainable printing techniques and transitioning the company to 100% soy ink usage by 2005. His forward-thinking leadership transformed Dupli-Group into a modern, full-service print solutions provider while preserving its heritage of quality and craftsmanship.
The maximum poster size depends on the specific wide-format equipment, material, and finishing requirements for your project. Dupli-Group offers wide-format banner and sign printing, so custom dimensions can be considered for posters, display graphics, and other large visual pieces. Share your desired finished size, artwork, display location, and whether you need laminating so the team can recommend a practical production approach.
Speak with our team about size, files, finishing, and production needs.
Environmentally sustainable printing practices recognized through FSC certification.
100% soy ink usage since 2005.
Approximately 80 years of quality-driven service.
Tell us about your size, artwork, quantity, and timing, and our team will help identify the right print approach.
To help us assist you faster, please include the reason for your message so the relevant team can reach out as soon as possible.
To help us assist you faster, please include the reason for your message so the relevant team can reach out as soon as possible.