How dassougoto/pdfmint works
1. Project shape
- This is a Next.js App Router application in TypeScript.
- The repo is organized as a small PDF tools suite: marketing/home pages plus individual tool workflows for PDF compression, merging, and splitting.
2. Route-level structure
- app/(home) contains the public landing experience, with its own layout and the top-level home page.
- app/tools/* contains the actual product/tool pages:
- /tools/compress-pdf
- /tools/merge-pdf
- /tools/split-pdf
- app/api/* contains server-side endpoints for PDF processing:
- /api/compress-pdf
- /api/merge-pdf
3. Main user-facing flow
- Users likely start on the home page, browse the tool catalog, then enter a specific tool page.
- Tool pages appear to host the interactive workspace for file selection, configuration, and downloading results.
- For operations that require server-side processing, the UI calls the corresponding API route.
4. Server-side processing boundary
- The API routes are the key backend boundary in this app.
- PDF transformation logic is not embedded in the pages; it is centralized in lib/ helpers and invoked by the route handlers.
- This keeps the UI layer separate from the file-processing layer, which is important for drawing the architecture diagram.
5. Core domain logic
- lib/process-pdf.ts, lib/pdf-utils.ts, and lib/compression-settings.ts are the likely core processing modules.
- lib/all-pdf-tools.ts, lib/features.ts, and lib/steps.ts appear to hold tool metadata, feature copy, and workflow step definitions used by the UI.
- lib/types.ts defines shared TypeScript types across the app.
6. Shared UI system
- components/common holds cross-cutting layout and workflow components such as:
- navigation/footer/theme toggle
- tool cards and file cards
- workspace and tool page shells
- download-page variants
- components/ui contains reusable primitive UI components, likely used throughout the app shell and tool interfaces.
7. Home/marketing subsystem
- components/home/* and app/(home)/* make up the public marketing landing page.
- These sections provide the hero, feature explanation, “how it works,” tools overview, and call-to-action content.
- This part of the app is presentation-heavy and separate from the actual PDF execution path.
8. Tool workspace subsystem
- components/common/tool-page.tsx, tool-client.tsx, workspace.tsx, and file-card.tsx suggest a dedicated interactive workspace for each tool.
- This layer manages user interaction: file upload/selection, tool-specific controls, and presenting output/download state.
- The workspace is the main client-side boundary between the user and PDF processing.
9. Output/download flow
- components/common/download-page.tsx and download-page-01.tsx indicate a dedicated result screen or result section after processing.
- The flow likely ends with a generated download link or downloadable artifact returned from the API or processing layer.
10. Theming and global shell
- app/layout.tsx, app/globals.css, components/ui/theme-provider.tsx, and components/common/theme-toggle.tsx show that the app has a global shell with theme support.
- components/common/navbar.tsx, mobile_menu.tsx, and footer.tsx form the shared site chrome around both marketing and tool pages.
11. Likely deployment/runtime model
- Because it uses Next.js App Router with route handlers, the app is designed to run in the standard Next.js runtime, with API routes deployed alongside the UI.
- There is no evidence of a separate database, queue, or external service; the architecture appears to be self-contained and oriented around file-based PDF transformations.
12. What to draw in an architecture diagram
- A good diagram would show:
- Browser/UI layer: home pages, tool pages, workspace, download view
- Shared presentation layer: common components and UI primitives
- Server/API layer: compress and merge route handlers
- Domain/library layer: PDF utilities, compression settings, tool metadata, workflow steps
- The main arrows should go from the tool workspace to the API routes, then to lib/ processing helpers, and back to the UI as downloadable results.
Main entry points: common Tool shell · page.tsx Home page · layout.tsx Tools layout · process-pdf.ts PDF engine
Components 20
App routes
Next.js App Router entrypoints for the public site, tools, and API routes.
- Root layout · Global app shell and providers.
app/layout.tsx - Home layout · Public marketing route layout.
app/(home)/layout.tsx - Home page · Top-level public landing experience.
app/(home)/page.tsx - Tools layout · Shared shell for tool pages.
app/tools/layout.tsx - Compress page · Interactive PDF compression workspace.
app/tools/compress-pdf/page.tsx - Merge page · Interactive PDF merge workspace.
app/tools/merge-pdf/page.tsx - Split page · Interactive PDF split workspace.
app/tools/split-pdf/page.tsx - Compress API · Server-side PDF compression endpoint.
app/api/compress-pdf/route.ts - Merge API · Server-side PDF merge endpoint.
app/api/merge-pdf/route.ts
Components
Shared presentation and workspace building blocks.
- Home sections · Hero, features, workflow, tools, and CTA sections.
components/home - Site chrome · Navbar, footer, mobile menu, and theme toggle.
components/common - Tool shell · Tool page wrapper, client controller, and workspace layout.
components/common - File UI · File cards and download/result page variants.
components/common - Tool cards · Tool listing and selection cards.
components/common/tool-card.tsx - UI primitives · Reusable low-level UI components and theme provider.
components/ui
Domain lib
PDF processing logic, metadata, and shared types.
- PDF engine · Core PDF transformation helpers.
lib/process-pdf.ts - PDF utils · Lower-level PDF utility helpers.
lib/pdf-utils.ts - Compression config · Compression settings and tuning values.
lib/compression-settings.ts - Tool metadata · Tool list, feature copy, and workflow steps.
lib/all-pdf-tools.ts - Shared types · Common TypeScript types for tools and workflows.
lib/types.ts
Connections 26
- Root layout → Home layout: wraps · Global shell wraps the public route group.
- Root layout → Tools layout: wraps · Global shell also wraps tool routes.
- Root layout → Site chrome: uses · Root layout pulls in shared site chrome and providers.
- Home layout → Home page: hosts · Public route layout renders the landing page.
- Home page → Home sections: composes · Landing page is built from marketing sections.
- Home page → Tool cards: shows · Landing page surfaces the tool catalog.
- Home page → Tool metadata: reads · Landing experience is driven by tool metadata and copy.
- Tools layout → Compress page: hosts · Shared tools shell wraps the compression page.
- Tools layout → Merge page: hosts · Shared tools shell wraps the merge page.
- Tools layout → Split page: hosts · Shared tools shell wraps the split page.
- Compress page → Tool shell: uses · Tool page delegates workspace structure to shared shell components.
- Merge page → Tool shell: uses · Tool page delegates workspace structure to shared shell components.
- Split page → Tool shell: uses · Tool page delegates workspace structure to shared shell components.
- Tool shell → File UI: renders · Workspace manages file selection, state, and download views.
- Tool shell → UI primitives: builds on · Workspace UI is composed from reusable primitives.
- File UI → UI primitives: builds on · File and result views use shared primitives.
- Compress page → Compress API: calls · Compression workspace submits jobs to the API route.
- Merge page → Merge API: calls · Merge workspace submits jobs to the API route.
- Compress API → PDF engine: invokes · Compression endpoint centralizes processing in library code.
- Merge API → PDF engine: invokes · Merge endpoint centralizes processing in library code.
- PDF engine → PDF utils: depends on · Core processing relies on lower-level PDF helpers.
- PDF engine → Compression config: uses · Compression logic is parameterized by settings.
- Tool shell → Shared types: uses · Workspace components share typed tool state and results.
- Tool metadata → Shared types: defines · Catalog and workflow definitions are typed against shared models.
- Home sections → Tool metadata: references · Marketing sections reuse the same tool catalog data.
- Site chrome → UI primitives: builds on · Navigation, footer, and theme controls use primitives.