Unlock PDF Utility

The unlockPDF function allows you to decrypt a password-protected PDF file and save a copy without passwords or usage restrictions.

API Signature

function unlockPDF(
  file: File | Blob | ArrayBuffer | Uint8Array,
  password?: string
): Promise<Uint8Array>

Parameters

• file: The input PDF file or buffer.
• password: The current decryption password.

Code Example

import { unlockPDF } from "@manojcoder/pdf-utils";

async function performDecrypt(file: File, userKey: string) {
  try {
    // Decrypt the file client-side
    const decryptedBytes = await unlockPDF(file, userKey);
    
    // Save to a local Blob
    const blob = new Blob([decryptedBytes], { type: "application/pdf" });
    const url = URL.createObjectURL(blob);
    console.log("Decrypted PDF URL:", url);
  } catch (error) {
    console.error("Decryption failed. Ensure the password is correct.", error);
  }
}