Original offline software · early manual orders

A working invoice kit, not another subscription.

English + 한국어. Create A4 printable invoices and estimates without putting your customers' data on a hosted server. The complete ZIP is prepared and integrity checked; this is a buyer-initiated manual order inquiry, not a functioning card checkout.

Private single-team licence

5 native Circle USDC · Base mainnet (chain 8453)

One-time early manual order for the offline PaperPilot v1.0 ZIP. Up to five people in one internal team, nonexclusive perpetual usage. No recurring fee. A future self-serve $12 checkout is not live.

Request manual order by email ↗ Try free calculator first ↗

Alternative contact: onecursor1@gmail.com, subject PaperPilot 5 USDC manual order request. No payment is requested until the seller accepts the exact terms in writing.

Included / 제공 내용

Local English/Korean invoice and quote editor; 7 display currencies (not automatic FX conversion)
A4 browser Print → Save as PDF; quantity, tax, discount, and remaining balance
Portable JSON editable backups; CSV line-item export; local draft saving
ZIP: 6 files, 14,613 bytes, no remote scripts, analytics or subscription
Included English/Korean usage guide and one-team licence; 12 numeric engine assertions passed

ZIP integrity (SHA-256)

43e21082aa8b84ca04cef1f6b4221959714129fa60b385fda71ca525fe875de4

The customer can verify the exact archive on receipt. Delivery is private after a real independent purchase; this page does not expose the licensed package.

How purchase works

Email the seller to confirm one internal-team licence, private delivery channel, price, cancellation/refund terms and whether native Base USDC is suitable for you.
Only after written acceptance, the seller supplies the existing original owner receive-only Base wallet address. The customer authorizes and pays directly from their own wallet. Base network fees may apply.
The seller verifies a genuine independent USDC transfer by transaction hash, recipient, asset and finality, then privately delivers the identical archive. Keep your order email and receipt.
Unzip, open PaperPilot/app/index.html in your browser, and save your documents locally.

No instant checkout / no escrow. This website cannot take card payments, issue government tax invoices or guarantee a bank withdrawal. Do not send crypto merely because you saw this page. No user funds are moved by the website.

한국어 구매 안내

한·영 오프라인 견적서·청구서 도구 1개 팀용 라이선스: 5 USDC(Base 메인넷). 전체 ZIP은 준비돼 있지만, 웹사이트 자동결제는 아직 없습니다. 단순히 주소를 보고 송금하지 마시고 먼저 이메일로 상품·라이선스(최대 5명)·환불 및 안전한 비공개 전달 방식을 확인해 주세요. 판매자가 서면으로 조건을 수락한 후, 구매자 본인이 지갑에서 정식 Circle Base USDC를 전송합니다. 외부 독립 입금과 최종 정산을 확인한 뒤 상품 ZIP을 비공개 전달합니다.

사용자 문서는 기기의 브라우저에서 작성합니다. 가격 표시 통화 전환은 환전 기능이 아닙니다. 이 도구는 국세청 전자세금계산서 발급 시스템, 세무·법률 자문, 카드결제 서비스가 아닙니다. 관련 법률상 철회·환불권은 유지됩니다.

5 USDC 수동 구매 상담 이메일 ↗

Limitations and buyer protection

This is AI-assisted, owner-authored software with tests, not a certified accounting, legal-compliance or e-tax-invoicing product. It does not email invoices, process customer payments, issue legally certified tax records, or exchange currencies. Generated PDF/CSV/JSON files may contain sensitive customer data and remain the user's responsibility. Browser local storage is not a backup; save JSON yourself. Print/PDF output and accessibility depend on your browser.

The licence permits use and modification on your own devices for one internal team of up to five; no redistribution or reselling the application's code as a separate product. Mandatory consumer rights are not waived. The seller must confirm delivery and refund terms before payment; if they cannot, do not pay. No external customer purchase or deposit is claimed merely by publishing this page.