PDF Front-end Validator

PDF Front Validator   |    Install   

PDF Front Validator

A lightweight TypeScript library for inspecting PDF file signatures in the browser and detecting files that were renamed with a .pdf extension.

Client-side file validation improves user feedback but does not replace server-side validation, malware scanning, or security controls.

Technology

• ⚛️ React 18
• ⛑ TypeScript
• ⛑ Vite
• 📏 ESLint
• 💖 Prettier

Install

NPM:

npm i pdf-front-validator

Yarn

yarn add pdf-front-validator

Usage

React example

import { validateFilePDF } from 'pdf-front-validator'

function App() {
  const selectedFile = e.target.files[0]

    validateFilePDF(selectedFile)
    .then((result) => {
      if (result !== undefined) {
        // It's a PDF file
      } else {
        // It's not a PDF file
      }
    })
    .catch((error) => {
      console.error("Error to validate PDF File. ln: 58 Error => ", error);
      return;
    });
}

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Made with 💗 by Patrick Gratão