Published September 29, 2026 · RetroForge Supply Team

Saddle Stitch or Perfect Bound: How a Cartridge Manual Is Actually Made

A cartridge manual is the cheapest part of a release and the one that most often gives away that a release was put together quickly. It is also the part where buyers ask for the wrong thing, because "full colour manual, 20 pages" sounds like a complete instruction and leaves out almost everything that determines how the book comes out.

Here is what actually decides the result. If you are pricing a boxed release, the private label packaging page carries the option set; this piece is about the choices underneath it.

Your Page Count Is Not Yours to Choose

A printed book is not printed page by page. It is printed as large sheets carrying several pages at once, folded down into a signature, and the folded signature is what gets stitched or glued. That folding arithmetic means the page count has to work out to a multiple of four per signature.

In practice, for a cartridge manual: 16, 24, 32, and 48 are the numbers you will be quoted. If your design comes in at 22 pages, you are printing 24 and finding two pages of content, or you are re-flowing down to 20 and printing 20 only if the layout allows a half-signature, which many do not.

Take this seriously at layout stage. Re-flowing a finished 22-page layout into 24 pages after the art is signed off is a day of work for somebody. Deciding it before the layout is built costs nothing.

Saddle Stitch, and Where It Stops Being the Right Answer

Saddle stitching is wire through the spine fold, two or three staples depending on the width. The book opens flat, it is cheap, and it is fast. For a 16 to 32 page manual on coated stock it is the correct process and there is no reason to look further.

Two things end it. The first is thickness: past roughly 64 pages, the fold at the spine stops being able to hold the book closed, and the manual starts to bulge open. The second is creep, which is the more interesting problem.

Creep, or shingling. When you fold a stack of sheets and trim the outer edge, the inner pages stick out further than the outer ones, because they have further to travel around the fold. The trim cuts them back, which means the inner pages lose more of their margin than the outer pages do. If your layout has a 10 mm inner margin throughout, a 32-page saddle-stitched manual will eat into that margin on the centre spread and your text will start to crowd the gutter.

The fix is shingle compensation: the printer shifts each successive page outward in the layout. It works, but it needs to be planned, and it needs your layout to have enough inner margin to absorb it in the first place. A 12 to 16 mm inner margin instead of 10 mm costs you nothing and buys you the whole problem.

Why the Paper Weight Matters More Than the Colour Count

Coated stock, the art paper most manuals are printed on, holds a halftone dot tightly, which is why colour on it looks sharp and saturated. Uncoated paper absorbs ink and spreads the dot, which softens everything. For pixel art and flat colour areas, the difference between coated and uncoated is more visible than the difference between 130 gsm and 157 gsm.

That said, weight is what people feel. A manual printed on 100 gsm text reads as a leaflet. The same page count on 150 gsm reads as a book. On a 16-page manual the paper upgrade is a small line item, and it is the single change that most reliably makes a budget release stop feeling like one.

If you want to see where the real cost steps are, the honest version from our side: colour cover and monochrome interior covers the great majority of commercial releases, colour throughout is a deliberate choice for releases positioned higher, and the paper upgrade is usually better value than the colour upgrade.

Registration, and Why Thin Paper Is Harder

Four-colour process printing builds every colour from cyan, magenta, yellow and black dots, laid down in separate passes. Registration is how precisely those passes line up. On heavyweight board it is straightforward. On thin text stock the sheet can stretch slightly between passes and between the front and back of the sheet, and any misregistration shows up as a coloured fringe on the edge of your artwork.

The practical consequence for your files: avoid fine coloured type reversed out of a dark background at small sizes, and avoid tight colour-on-colour edges. Those are the places where a 0.1 mm shift is visible. Large flat areas and bold shapes hide it completely.

Bilingual Manuals Multiply the Problems

Canadian releases commonly carry English and French in one manual, as do several European markets. That is not a translation task on top of the print job; it changes the page count, the layout and sometimes the fold.

Where it goes wrong is when two languages are treated as a text swap on an existing layout. French runs longer than English for the same content, so the re-flowed version pushes past its page allotment, and the print run gets reduced on one language and expanded on the other. If a bilingual manual is on the table, say so before the layout is drawn, not after.

For markets that read right to left, the whole book mirrors, spine side included. That is a different product, not a different edition.

The Insert Nobody Counts

There is a die-cut board piece inside a retail box that holds the cartridge or the case in place so it does not move in transit. It is the cheapest item in the box by a wide margin and the one that most often gets left out of a quote, because buyers count "box, manual, cartridge" and stop.

It is also the part that prevents the specific complaint every seller eventually receives: arrived with the label scuffed, or the box crushed at one corner with the contents loose inside. Board weight and the die line decide whether it does that job. It is worth asking whether it is included before you compare two quotes against each other.

What We Control, and What We Do Not

Printing and binding run through print partners we have worked with for over a decade. We do not own a press, and we do not claim to. What we hold is the specification and the sign-off: the stock, the colour target, the page count, the fold, the die lines, the finishing, and the pre-production sample.

That means if a manual arrives with a colour shift, a creeping inner margin or a die line that is out of position, the conversation is between us and them. You get one answer, from one supplier, and it is our responsibility.

It also means we will not quote you a manual from a description. Send the page count, the language list, the finished size and the paper you have in mind, and the quote comes back with the fold and the finishing named. See the packaging page for the option ranges.

The Short Version

Page count is a multiple of four. Saddle stitch is right up to about 32 pages and needs inner margin for creep. Coated stock matters more than colour count, and paper weight matters more than either. Bilingual manuals change the page count. The die-cut insert is the cheapest insurance in the box.

Paperwork is one of five or six items in a boxed release, and it is the one buyers most often under-specify. Get it right before the layout exists, and the rest of the release is easier. The wholesale overview covers the hardware side, and send us the specification and we will quote it if you want the whole release priced together.

The items shown in the video are customer project samples. We produce only to specifications supplied by customers who have secured the necessary rights and authorisations for the artwork and game data involved.