Press-ready output, not a screenshot
Output is the same PDF you uploaded with the editable fields filled in. CMYK preserved, trim boxes preserved, spot colors preserved where the source supports it. Preflight on every render.
For print shops
Stop hand-editing every variant of every order.
Your shop already approved the artwork. StackFill turns that approved PDF into a customer-personalized link — CMYK-correct, trim-correct, no recreation in a new design tool.
What hurts today
Customer calls in: "Order the same cards as last time, but with my new title and four new reps." Someone in the shop opens the InDesign file, edits five names, five phone numbers, five emails, exports a press PDF, and prays nobody dropped a baseline shift.
The shops that have tried web-to-print platforms know the trap: the platform won't print the file you've already approved. It wants you to rebuild every business card, every letterhead, every postcard inside its editor first. So you stop using it and go back to editing files by hand.
The variant tax compounds:
- Every reorder is a manual job — even when nothing changed but the name.
- A typo or missed bleed only surfaces after a press run, never before.
- Shops eat the revisions because the customer "just wanted a new business card."
- The shop's best people spend hours typing names instead of running presses.
What StackFill does
Upload the press-ready PDF you already use. Click the fields a customer is allowed to change — name, title, phone, email, the four image slots on the photo card. Lock the logo, the layout, the spot color, the trim.
Hand the customer a hosted fill link or drop the embed into the storefront you already have. They personalize against an exact-pixel preview of the locked artwork. The PDF they download is the same artwork — with their values in the editable fields — in CMYK, with your trim and bleed, ready to drop into your queue.
The shop touches the file once: upload, mark, save. Every reorder after that is the customer's job.
What's in it for you
No design-tool rebuild
Your approved InDesign or Illustrator export is the source. StackFill doesn't ask you to recreate the artwork — it just parses it and exposes the editable parts.
Hosted links or storefront embed
Email a link to a one-off customer. Or drop the StackFill widget into the WooCommerce / Shopify / hand-rolled storefront you already run. Same engine, same output.
Multi-up + variable-data ready
One template feeds one customer at a time or a CSV of 200. Same locked artwork, different field values, one batch run.
Team font library
Your foundry-licensed fonts upload once. Every template binds to the same library — no "wait, where's the right Helvetica?"
Self-serve customer experience
The customer fills out a clean form on their phone or laptop. They see the proof. They approve. You receive a finished PDF, optionally with payment captured at fill time.
Pricing fit
Most independent and small-chain shops run on Starter ($29/mo) — 5 templates, 250 renders/mo, hosted fill links. Step up to Pro ($99/mo) when you're ready for storefront embeds, API access, and webhooks into your MIS.
FAQ
Does this replace my web-to-print platform?
StackFill complements one or replaces a layer of it. If you have a storefront / commerce piece working, StackFill drops into it. If you don't, hosted fill links give you the customer-facing piece without building a storefront.
What press-ready PDFs work?
Most. Standard PDF/X-1a or PDF/X-4 exports from InDesign, Illustrator, QuarkXPress, or Affinity work out of the box. CMYK is preserved through the render path. Send us a sample if you want a sanity check before signing up.
Can I keep the customer on my domain?
Yes — on Pro and Agency. Drop the embed widget into your own site, optionally white-label, and the customer never leaves you. Hosted fill links live at stackfill.com (or a subdomain you control).
What about variable-data jobs?
Same engine. Hand it a CSV and you get back one PDF per row, ready to impose. Variable-data is a Pro+ feature.
What happens to my fonts?
Upload them once to your team font library; every template binds to the same registry. Fonts never leave your account.