To use the Backend/API, follow these steps:

1. Clone the "Pre_process" repository.
2. Run the Python app continuously using the following command:

   python Pre_processing.py
   

To connect the Frontend with the API on your server, follow these steps:

1. Locate the config.json file.
2. Specify your publicly available API to communicate with the backend.

To set up a development environment, follow these steps:

1. Clone the repository.
2. Run the following commands in the terminal:

   npm install
   ng serve
   

3. Navigate to http://localhost:4200/. The application will automatically reload if you change any source files.

To build the application, run the following command:

ng build

The built project will be stored in the dist/ directory.

The process of PDF upload and text retrieval is split into two steps for a more responsive application.

1. PDF Upload Process:

   • Users can upload one PDF file at a time.
   • The backend generates a unique identifier for each uploaded PDF.
   • The frontend quickly receives this identifier.
   • Uploaded files are saved for the current browser session.

2. Text Retrieval Process:

   • Users can access uploaded files via an API call with the unique identifier.
   • The backend searches for the file and responds with processed plain text.
   • If processing is not finished, the user is informed to retry later.
   • Once processing is complete, the backend responds with plain text.

For visual representations of these processes, refer to the following figures:

• PDF Upload Process: Figure

• Text Retrieval Process: Figure