Don't remove files from file input, just append

src/main/resources/static/js/downloader.js

@@ -75,7 +75,6 @@
           // Check if any PDF files are encrypted and handle decryption if necessary
           const decryptedFiles = await checkAndDecryptFiles(url, files);
           files = decryptedFiles;
-          formData.delete('fileInput'); // Reset fileInput and Append
           // Append decrypted files to formData
           decryptedFiles.forEach((file, index) => {
             formData.append(`fileInput`, file);