PDF Engine · 2024

JQ-Auto (UpCar)

Automobile parts inspection & quotation PDF generator.

Overview

A web tool for auto-parts exporters to build parts inspection sheets and generate professional multi-page PDFs, with a WYSIWYG preview that shares one source of truth with the final document.

My role

Full-stack — freelance project, end to end

Highlights

01
Server-side HTML→PDF rendering via Puppeteer, returned as application/pdf
02
Single HTML/CSS layout drives both in-app preview and final PDF (true WYSIWYG)
03
Singleton Puppeteer browser shared across requests for performance

Key features

Parts table — add/delete rows, inline image upload, 12-digit code validation, live totals (handles 500 parts)
Document save & history persisted to MongoDB; reload past quotation sheets
Reusable part library across documents
Cloudinary image storage fetched by URL during PDF render (avoids base64 bloat)
Multi-page PDF — rows never split across pages, header repeats per page