Short answer: Digital printing avoids plates and setup so it is cheapest for short runs, while offset has a setup cost that gets spread across more copies, so it becomes cheaper as the run grows; the exact break-even depends on the book.
Offset and digital printing both put ink on paper, but they cost money in different places.
How each works
Offset printing transfers ink from metal plates to a rubber blanket to the paper. Making plates and setting up the press takes time and materials, but once the press is running it produces copies very efficiently. Digital printing applies toner or ink directly from a file, with essentially no plate and little setup.
What that does to cost
- Digital: low setup, a nearly flat cost per copy. Best for very short runs, quick turnarounds, and print-on-demand.
- Offset: a meaningful setup cost, then a falling cost per copy as quantity rises. Best when you need hundreds to thousands of copies or more.
Finding your break-even
There is no single number. The crossover depends on page count, trim size, color, paper, and binding. As a general pattern, offset gets more attractive as the quantity moves from the hundreds into the thousands, and the gap widens from there. The reliable way to find it is to price the same spec at several quantities and look at cost per copy.
Quality and finish
Offset gives consistent color across a long run and a wide choice of papers and finishes, which is why it is the standard for magazines, catalogs, and trade books. Modern digital presses are excellent for short runs, but results can vary more by machine and paper.
What Printseoul does
Printseoul runs offset production, with a minimum of 100 copies in the instant quote (200 for hardcover). If you only need a handful of copies, a digital or print-on-demand service is usually the better route; if you are planning hundreds or thousands, offset starts to make sense.
Frequently asked questions
At what quantity is offset cheaper than digital?
It depends on the spec, but offset becomes more competitive as the quantity moves into the hundreds and thousands. Price the same spec at several quantities in the instant quote and compare cost per copy.
Is offset print quality better than digital?
Offset is the standard for long runs because color is consistent and papers and finishes are broad. Digital is excellent for short runs. The right choice depends on quantity and the finish you need.
Related reading
- How Print Quantity Affects Cost per Copy (With Reference Numbers)
- Moving from Print-on-Demand to an Offset Print Run: A Guide for Self-Publishers