Feature spec
Goal: Send a clear invoice after finishing a job.
- Add a client, line items, a due date, and payment instructions.
- Preview the total before exporting a PDF.
- Keep an editable draft if export fails.
App Overview
PDF Printer Premium - Share your docs within seconds
PDF Printer is the ultimate converter to Adobe PDF
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.9
11 ratings · Top 50%
Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.
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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What's included14 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
Preview a sample Build Kit No email needed
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Screen plan
Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.
States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.
Differentiate and validate
Hypothesis: Contractors need faster repeat invoices more than more templates.
First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.
The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.
Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.
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Free quick prompt For a smaller starting point
Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for PDF Printer Premium - Share your docs within seconds: map the core Business workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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Opportunities
AI-GENERATED OPPORTUNITY HYPOTHESES
These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.
Hypothesis 1
Include basic editing tools like annotations and highlights.
Assumption to check: Limited document editing features
Validate with people who use this workflow before building.
Hypothesis 2
Optimize file handling and processing speed.
Assumption to check: Inconsistent performance with large files
Validate with people who use this workflow before building.
Hypothesis 3
Add options for saving documents to popular cloud services.
Assumption to check: Lack of cloud storage integration
Validate with people who use this workflow before building.
Hypothesis 4
Enhance sharing capabilities to include more platforms and formats.
Assumption to check: Limited sharing options
Validate with people who use this workflow before building.
App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
App Store description
PDF Printer is the ultimate converter to Adobe PDF. Open and read any office document. Convert popular content e.g. Photos, Notes, Web Pages to the Portable Document Format. Create and share PDF documents on the fly. PDF Printer lets preview Word, Excel, PowerPoint, Pages, Numbers or Keynote files on your iPad. If you need any of these documents for future reference, just convert them to PDFs and keep in the document manager or upload to the cloud storage. If you deal with digitalizing printed documents, there is the built-in scanner module that enables you to make sharp digital copies and instantly save them to the readable PDF files. PDF Printer makes it easy for everyone who wants to keep web pages, bills, invoices or bank transcripts for offline reference to save them to the platform-independent PDF. You can do it directly with the help of built–in web-browser or from any browser you choose thanks to the Convert To PDF extension. With PDF Printer, you enjoy the simple way to merge several pieces of content into the single PDF file and manipulate with page order in the handy manner. Save to PDF and share: • Pages, Numbers and Keynote documents • Word, Excel and PowerPoint files • Photos • Pictures and Texts from Clipboard • Emails and attachments • Text Messages • Contacts • Web-pages
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
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Build scope
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Define the first version
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Set boundaries
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Check the hard parts
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
SUGGESTED BUILD STACK
React Native
Expo
React Navigation
Zustand
expo-document-picker
shadcn/ui
BUILD KIT DIFFICULTY
Advanced
From the Build Kit assessment.
A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.
