Parameter, LLC
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All Products & Services
StackFill is web-to-print personalization without the recreation tax. Most web-to-print platforms make a shop rebuild every design inside their own editor before customers can personalize it. StackFill starts from the print PDF you already approved for press. Upload the master file — a business card, letterhead, name badge, postcard or sell sheet. Click the elements customers are allowed to change, such as name, title, phone or a dropdown of office addresses, and lock everything else. Then send a hosted fill link, or drop the StackFill widget into your Shopify, WooCommerce or custom storefront. Customers type into the editable fields, see a live proof against your real artwork, and can pay before ordering. You receive print-ready output built from the locked template: CMYK-aware, trim- and bleed-aware, with PDF/X-1a and preflight checks. One template serves a single customer or a CSV of hundreds in one batch run. Plans start free; paid plans from $29/month.
SignedShoot generates model, property, minor, crowd, NDA, social-media-use and bilingual (English/Spanish) releases for photographers and videographers. Each release is framed for the shoot type (wedding, boudoir, real estate, drone, newborn, school, commercial) and can use state-specific language for California, New York, Florida, Texas and Illinois. The full release is free as a watermarked PDF, with no account. A one-time $29 unlocks one release type with your logo and studio details as an editable .docx and clean PDF; $49 unlocks all seven types. A $19/month Studio plan adds saved branding and a client list. Releases are assembled in the browser, so subject details are not uploaded. SignedShoot provides document templates, not legal advice.
PreArrive is a pre-arrival acknowledgment tool for US short-term rental hosts on Airbnb, VRBO, Booking.com, and direct booking. You build a packet of house rules and itemized fees once. Each guest gets a link before check-in, taps each rule and fee individually on their phone, and signs in about ninety seconds, with nothing to install. You get back a PDF certificate with a drawn signature, a SHA-256 content hash, a two-event audit trail, and a QR code anyone can use to verify it, ready to attach when a damage claim, fee dispute, or insurer asks what the guest agreed to. PreArrive syncs reservations from Airbnb, VRBO, and Booking.com calendars, reads forwarded booking emails, and offers a REST API and webhooks on Pro. It is deliberately narrow: not a PMS, not ID verification, not insurance, and not legal advice. The certificate is evidence, not a verdict. Free covers one property.