Lovable Prompt Creator - AI Prompt Generator

## APPLICATION OVERVIEW
The project is a web application designed to function as a sophisticated PDF Editor that enables users to edit PDF documents word by word. By integrating advanced technologies to decipher the inherent structure of PDFs, this application aims to provide a seamless editing experience akin to that of traditional word processors, overcoming the challenges posed by the PDF format.

## CORE FEATURES
1. **Drag-and-Drop Upload Interface**: Users can easily upload PDF files through a simple drag-and-drop mechanism, enhancing user convenience and accessibility.

2. **Heuristic Layout Analysis**: The application employs algorithms to analyze the layout of the PDF, grouping disconnected letters into coherent words and paragraphs, allowing for intuitive editing.

3. **Text Reflow Engine**: This feature ensures that when a user deletes or modifies text, the surrounding text shifts automatically to maintain a natural flow of content within paragraphs.

4. **Real-Time Editing Canvas**: An interactive canvas that allows users to click on text to edit it directly, with a context-aware toolbar for additional text and image editing options.

5. **OCR Integration**: For scanned PDFs, the application utilizes Optical Character Recognition (OCR) technology to convert images of text into editable text layers, facilitating editing even on non-digital documents.

6. **Export & Serialization**: Users can download the edited PDF with the changes applied, thanks to a serializer that correctly remaps coordinates to create a new PDF file.

## DESIGN SPECIFICATIONS
- **Visual Style**: minimalist - Clean, simple design with plenty of white space, minimal color palette, and focus on typography.
- **Color Mode**: Light theme with dark text on light backgrounds.
- **Primary Color**: #1978E5 (accent for buttons, links, highlights).
- **Typography**: Use Inter from Google Fonts for headings, Inter for body text and UI elements.
- **Border Radius**: 8px (moderately rounded) for buttons, cards, and inputs.
- **Layout**: The main layout will consist of a header with branding and navigation, a central editing area for the canvas, and a sidebar for the toolbar and options, ensuring an intuitive flow from upload to editing and exporting.

## TECHNICAL REQUIREMENTS
- **Framework**: React with TypeScript.
- **Styling**: Tailwind CSS.
- **UI Components**: shadcn/ui.
- **State Management**: Redux or Zustand for managing application state efficiently.

## IMPLEMENTATION STEPS
1. **Setup Project**: Initialize a new React project with TypeScript and install necessary dependencies (React, Tailwind CSS, shadcn/ui, etc.).
2. **Design Layout**: Create the main application layout comprising the header, sidebar, and main editing canvas using Tailwind CSS for styling.
3. **Implement Upload Functionality**: Add a drag-and-drop upload interface using React Dropzone or similar libraries to handle file uploads.
4. **Integrate PDF Parser**: Use a library like PDF.js or MuPDF to unpack PDFs and extract text, images, and fonts.
5. **Develop Layout Analysis and Text Reflow**: Implement the heuristic layout analysis and the text reflow engine to manage text edits seamlessly.
6. **Build Interactive Canvas**: Create the editing canvas utilizing HTML5 <canvas> or WebGL, overlaying editable text areas with bounding boxes.
7. **Add OCR Capability**: Integrate OCR functionality to support editing of scanned PDFs.
8. **Export Functionality**: Develop a serializer to convert edited content back into a PDF format, ensuring coordinate mapping is preserved.
9. **Testing and Optimization**: Conduct comprehensive testing for usability, performance, and responsiveness across different devices.

## USER EXPERIENCE
The user experience will prioritize intuitive interactions, allowing users to upload a PDF, edit it directly on an interactive canvas, and export the modified document effortlessly. Users will experience real-time feedback, with visual cues guiding them through the editing process. The application will be responsive, ensuring usability on both desktop and mobile devices, with clear calls to action for uploading, editing, and downloading PDFs.