StackFill
Take the press-ready print file you already have, mark the parts a customer is allowed to change, and hand them a link where they personalize it and download a print-grade CMYK PDF that matches the original exactly. No rebuilding the design in another tool.
The problem we kept seeing.
Print shops sit on finished, approved files: business cards, letterheads, badges, postcards, sell sheets. And they constantly need versions of them. One per employee, one per office, one per rep, one per event. Today that versioning is done by hand. A designer opens the source file, retypes a field, re-exports, re-proofs, and emails a PDF back. It works, and it quietly eats the shop’s best hours.
The tools that promise to automate this, the web-to-print platforms, all share one catch: they make the shop rebuild every design inside the new system first. That recreation step is so painful it kills adoption. Most shops start a pilot, hit the rebuild wall, and go back to editing by hand. StackFill is the version that skips the rebuild: the file you already approved is the template.
If you make versions of the same print file, this is for you.
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Print shops still editing by hand. Stop retyping and re-proofing every variant of a customer’s card or letterhead. Upload the approved file once, mark the editable fields, and every reorder becomes the customer’s job instead of yours.
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Corporate and franchise marketing teams. Let field reps, regional offices, and franchisees self-serve on-brand collateral. The locked artwork cannot drift, so brand approval happens once at the template, not on every request.
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Agencies and designers. Deliver a personalization link to a client instead of doing endless versioning by hand. Bill the setup, stop eating the revisions, white-label the embed on your own domain.
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Anyone with a master file and a list. One template feeds one customer through a shared form, or two hundred through a spreadsheet. Single fill and variable-data batch run on the same engine.
Three steps, and the shop touches the file once.
Upload the press-ready PDF
Standard PDF/X exports from InDesign, Illustrator, Quark, or Affinity come through with CMYK, fonts, and vector art intact.
Mark editable, lock the rest
Click the fields a customer can change (name, title, phone, photo slots). Lock the logo, layout, color, and trim. Everything stays exactly as approved.
Share the link, receive the PDF
The customer fills the fields against a live proof and downloads a print-grade CMYK PDF, preflighted and ready for your queue. Payment optional at fill time.
More detail, pricing, and a live demo are on the product site: stackfill.com.
It came out of real print-client work.
We do production work for print and stationery clients, and the same job kept landing on our desk: take an approved card or letterhead and make a fillable, on-brand version a customer can personalize without a designer in the loop. We solved it once with custom runtime-injection code on a client’s storefront, watched it save them hours every week, and realized the pattern was bigger than one shop.
So we built the general version and put it at stackfill.com. It is the kind of product we like to ship: narrow, opinionated, finishes the job, and respects the trade instead of asking a shop to learn a new platform or rebuild work it already approved.
Make your own file fillable.
Upload a card or letterhead, mark the editable fields, and see the print-ready PDF come back. The first one shows you exactly how it works.
Open StackFill