In my experience managing custom stationery projects on the factory floor, roughly eighty percent of design files received from clients require some degree of correction before they can enter production. That figure sounds alarming, but anyone who has spent time on the manufacturing side knows it is practically the norm. The issue is not about the client's design capability—it is about an almost invisible information gap between what appears on screen and what the printing press actually needs.
This gap is particularly easy to overlook in the customization process for corporate stationery, because the person on the procurement side who handles file submission is rarely a prepress specialist. They might be someone from the administrative department, or a brand coordinator on the marketing team. When these colleagues forward a design file directly from their graphic designer to the supplier, they typically do not realize that the file still needs to pass through a "format conversion" step before it can actually go into production.
The most common issue is color mode. When designers work on their computers, the screen displays colors using RGB (Red, Green, Blue)—an additive color model. Printing presses, however, use CMYK (Cyan, Magenta, Yellow, Black)—a subtractive model. The color gamuts of these two systems differ significantly. Certain high-saturation colors that RGB can render simply cannot be accurately reproduced in CMYK. In practice, this means the "brand blue" or "corporate red" that the client confirmed on screen will almost certainly show a color shift once printed. If the design file was not built in CMYK mode from the start, this discrepancy will only surface at the proofing or even mass production stage—and by then, the cost of correction goes far beyond simply readjusting the color values.
Resolution is another parameter that is frequently misjudged. Most people know the basic rule that "print requires 300 dpi," but in actual practice, the problem often lies in scale calculations. An image that has sufficient resolution at A4 size will see its effective resolution drop proportionally if it is enlarged to A3 or larger for a folder cover. When the client zooms in on screen to inspect the image, they may not notice obvious blurring, because screen display density automatically compensates for visual quality. But the printing press does not compensate—insufficient resolution means insufficient resolution, and the printed output will show soft edges and visible banding in gradients.
Missing bleed is the third high-frequency issue. Bleed refers to the requirement that images or background colors extend beyond the trim line, typically by 3 millimeters on each side. This setting ensures that even if there is a slight offset during trimming, the finished edge will not show a white strip. Corporate stationery products—notebook covers, envelopes, business cards, folders—almost always require full-bleed printing, making bleed settings essential. Yet many client-supplied files have design content that stops precisely at the finished product boundary with no extension whatsoever. When the factory receives such a file, the options are either to send it back for revision or to extend the background internally—the latter may seem expedient, but if the background involves gradients or textured patterns, the factory's extension work will likely leave visible seam marks.
There is one more issue that is particularly thorny in B2B scenarios: fonts. The text printed on custom corporate stationery often involves proprietary brand fonts or licensed typefaces. The designer has these fonts installed on their own machine, so the file displays perfectly on their screen. But when the file reaches the factory, if the fonts have not been embedded or converted to vector outlines (known in the industry as "outlining" or "converting to curves"), the prepress system will automatically substitute default fonts, causing the entire layout to shift. What makes this worse is that such substitutions sometimes do not trigger obvious error alerts, and if the factory's prepress staff do not compare each page against the original, the font discrepancy may not be discovered until printing is complete.
Viewed individually, each of these issues has a clear technical solution. But the reason they recur in actual customization workflows is fundamental: the file handover step is simply not given sufficient management weight within the overall procurement process. The procurement side typically treats "providing the design file" as a simple file transfer action, rather than a process node requiring technical verification. When understanding the full workflow of custom corporate stationery, the importance of this step is consistently underestimated.
From the factory's perspective, every file correction means an adjustment to the production schedule. If the correction happens before proofing, the impact is relatively contained—perhaps one or two extra working days. But if the problem is discovered after proofing—say the client sees the proof sample and only then realizes the color is wrong or the font is wrong—then a new plate must be made and a new proof produced, potentially pushing the entire timeline back by one to two weeks. For corporate procurement tied to specific event dates (annual dinner gifts, exhibition materials, New Year presents), such delays are often unacceptable.
In practice, this is precisely where customization process decisions are most easily misjudged. The procurement side tends to assume that "the design is finalized, so the rest is just production," but the factory knows that between design finalization and actual press-ready status, there is still a prepress preparation stage. How smoothly this stage proceeds depends almost entirely on the quality of the original files provided by the client. And file quality, in turn, depends on whether the client understands the specific format requirements that print production demands.
This is not a problem that resolves itself through "experience." Even long-standing repeat clients may submit files with the same issues on every new project, because the designer may have changed, the design software version may have updated, or the product dimensions may differ from last time. The only reliable approach is to establish a clear file specification checklist early in the customization process and conduct item-by-item verification at the point of file handover. It may sound like unnecessary administrative overhead, but from the factory's experience, the time and cost this checklist saves far exceeds the few minutes it takes to prepare.
