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System Requirements Document for PDF God

1. Introduction

PDF God is a web-based tool designed to provide users with a comprehensive suite of PDF manipulation and conversion features, similar to those offered by iLovePDF. This document outlines the system requirements for the development and deployment of PDF God, ensuring it meets the needs of users in India and beyond.

2. System Overview

PDF God aims to offer a robust and user-friendly platform for managing PDF documents. The system will support a wide range of functionalities, including conversion, editing, and organization of PDF files. It will be accessible via web browsers, with potential expansions to desktop and mobile platforms.

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2a. Source Content Inventory

Tools Available (Web):
- Merge PDF
- Split PDF
- Compress PDF
- PDF to Word, PowerPoint, Excel
- Word, PowerPoint, Excel to PDF
- PDF to JPG, JPG to PDF
- HTML to PDF
- Unlock PDF
- Protect PDF
- Edit PDF (text, images, shapes, annotations)
- Watermark
- Rotate PDF (including batch)
- Organize PDF (reorder, delete, add pages)
- PDF to PDF/A
- Repair PDF
- Page numbers
- Scan to PDF
- OCR PDF
- Compare PDF
- Redact PDF
- Crop PDF
- PDF Forms (create/fill)
- AI Summarizer
- Translate PDF
- PDF to Markdown
Behaviors and Flows (Web):
- Batch processing: allow multiple files to be processed at once
- Workflow chaining: navigate directly to the next tool after file processed
- Cloud integration: open files from Google Drive or Dropbox and save back
- Automatic deletion: uploaded files are auto-removed after 2 hours
- Security: end-to-end encryption and GDPR-level protections

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3. Functional Requirements as Story Points

As a User, I should be able to merge multiple PDF files into one.
As a User, I should be able to split a PDF into separate files.
As a User, I should be able to compress a PDF to reduce its file size.
As a User, I should be able to convert PDF files to Word, PowerPoint, and Excel formats.
As a User, I should be able to convert Word, PowerPoint, and Excel files to PDF.
As a User, I should be able to convert PDF files to and from JPG format.
As a User, I should be able to convert HTML pages to PDF.
As a User, I should be able to unlock password-protected PDFs.
As a User, I should be able to protect PDFs with passwords.
As a User, I should be able to edit text, images, shapes, and annotations in PDFs.
As a User, I should be able to add watermarks to PDFs.
As a User, I should be able to rotate PDF pages, including batch rotation.
As a User, I should be able to organize PDF pages by reordering, deleting, or adding pages.
As a User, I should be able to convert PDFs to PDF/A format.
As a User, I should be able to repair corrupted PDF files.
As a User, I should be able to add page numbers to PDFs.
As a User, I should be able to scan documents to PDF format.
As a User, I should be able to perform OCR on PDFs to extract text.
As a User, I should be able to compare two PDF files.
As a User, I should be able to redact sensitive information from PDFs.
As a User, I should be able to crop PDF pages.
As a User, I should be able to create and fill PDF forms.
As a User, I should be able to summarize PDFs using AI.
As a User, I should be able to translate PDF content.
As a User, I should be able to convert PDFs to Markdown format.

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4. User Personas

Standard User: Individuals who need basic PDF manipulation tools for personal or professional use.
Business User: Professionals and teams requiring advanced features such as batch processing, workflow automation, and enhanced security.
Administrator: Users responsible for managing team access, billing, and overseeing platform usage.

5. Core User Flows

User uploads PDF -> selects merge tool -> selects files to merge -> downloads merged PDF.
User uploads PDF -> selects compress tool -> adjusts compression settings -> downloads compressed PDF.
User uploads PDF -> selects convert to Word tool -> downloads Word document.
User uploads PDF -> selects edit tool -> makes changes -> saves edited PDF.
User uploads PDF -> selects protect tool -> sets password -> downloads protected PDF.

6. Visuals Colors and Theme

primary: #1A73E8 (a deep blue for brand identity)
primary_light: #E8F0FE (a light blue for hover states)
secondary: #FF6F61 (a coral hue for emphasis and links)
accent: #FFD700 (a vibrant gold for CTAs and active states)
highlight: #FFA500 (an orange for notifications and active indicators)
bg: #FFFFFF (a clean white for page backgrounds)
surface: rgba(240, 240, 240, 0.8) (a light grey for card/panel backgrounds)
text: #202124 (a dark grey for primary text)
text_muted: #5F6368 (a softer grey for secondary text)
border: rgba(218, 220, 224, 0.2) (a subtle grey for borders)

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7. Signature Design Concept

Interactive PDF Workflow Animation

The homepage of PDF God will feature an interactive PDF workflow animation. Users will see a dynamic, illustrated workflow where PDF files are visually transformed through various tools. For example, a PDF icon enters the screen, splits into multiple pages, merges back, compresses, and finally exits as a compact file. This animation will be built using motion/react for smooth transitions and interactions.

Landing Hero Motion Brief:
- Input: A PDF icon enters the screen.
- Transformation: The PDF splits, merges, compresses, and transforms through various tools.
- Outcome: The PDF exits as a compact, optimized file.
- Layers: Foreground (PDF icons), Midground (tool icons), Background (workflow path).
- Loop: A 10-second loop showcasing the transformation.
- Interaction: Users can hover over tools to see brief descriptions.
- Responsive Behavior: Adjusts to screen size, maintaining clarity and engagement.

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8. Interaction Model & Motion Direction

Intended Interaction Model: Animated
- The landing page will feature moderate scroll-triggered reveals and hover transitions.
- Interactive elements will have spring physics for a polished user experience.
- Each section will have a distinctive core mechanic, such as morphing SVGs or kinetic typography.

9. Non-Functional Requirements

The system must support high availability and scalability to handle peak loads.
It must ensure data security and privacy, complying with GDPR standards.
The platform should be responsive and accessible across various devices and browsers.

10. Tech Stack

Frontend: React for Web
Backend: Python, FastAPI
Database RDBMS: MySQL or MariaDB
AI Models: GPT 5.4 for user-friendly responses, Claude Sonnet 5 for academic or coding work
AI Tools: Litellm for LLM Routing, Langchain
Local Orchestration: Docker, docker-compose
Server-side Orchestration: Kubernetes

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11. Assumptions and Constraints

The system will initially be developed for web browsers, with potential future expansions to desktop and mobile platforms.
User data will be stored securely, with encryption applied to sensitive information.
The platform will integrate with popular cloud storage services like Google Drive and Dropbox.

12. Glossary

PDF: Portable Document Format
OCR: Optical Character Recognition
GDPR: General Data Protection Regulation
AI: Artificial Intelligence
CTA: Call to Action

pdf god

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