Extract Text from PDF Files Online Extract text from PDF.

The tool works by using the pdfjs-dist library to parse the PDF file and extract its text content. When a PDF file is dropped into the FileDropzone component, the handleFile function is triggered, which sets up the necessary state variables and imports the pdfjs-dist library dynamically. The library's GlobalWorkerOptions.workerSrc property is then set to a URL pointing to a pdf worker script, allowing it to handle the actual PDF parsing. The PDF file is then converted into an array buffer using the File.arrayBuffer method, and this buffer is passed to the pdfjs-dist.getDocument function to create a PDF document object.

The tool then iterates over each page of the PDF document, extracting its text content using the getPage and getTextContent methods of the pdfjs-dist library. The extracted text is stored in an array, which is then used to update the state variables and display the extracted text to the user. The Clipboard API is used to implement the copy-to-clipboard function, allowing users to easily copy the extracted text. The tool also uses React's memoization features, such as useMemo and useCallback, to optimize its performance and prevent unnecessary re-renders.

The UI of the tool is built using a responsive design, with components like the FileDropzone and glass-card elements adapting to different screen sizes and devices. When the user interacts with the tool, such as switching between viewing all pages or individual pages, the state variables are updated accordingly, triggering re-renders of the affected components. The progress bar is also updated in real-time as each page is processed, providing visual feedback to the user about the conversion process. Overall, the tool's client-side architecture and use of modern web technologies like React and the Clipboard API enable it to provide a fast and seamless experience for users extracting text from PDF files.