Protect PDF Files

Add password protection and set permissions to secure your PDF documents. Keep sensitive information safe from unauthorized access.

Upload PDF File

Drop PDF file here

or click to browse

Max file size: 100MB

Protecting your PDF...

Security Settings

User Password (Required to Open)

Password strength:

Owner Password (Optional - for permissions)

Owner password allows setting permissions and can open without restrictions.

Encryption Level

128-bit (Standard) 256-bit (Strong)

Permission Settings

Printing

Allow or restrict printing of the document

Modification

Allow or restrict editing of the document

Copy Content

Allow or restrict copying text and images

Annotations

Allow or restrict adding comments and annotations

Why Protect Your PDFs?

Our PDF protection tool offers comprehensive security features

Strong Encryption

Military-grade AES 128-bit or 256-bit encryption to secure your documents

Dual Password Protection

Separate user and owner passwords for different access levels

Granular Permissions

Control printing, editing, copying, and annotation permissions

Fast Processing

Protect PDFs instantly without compromising quality or security

// File upload handlers browseBtn.addEventListener('click', () => fileInput.click()); fileInput.addEventListener('change', (e) => { handleFileUpload(e.target.files[0]); }); uploadArea.addEventListener('dragover', (e) => { e.preventDefault(); uploadArea.classList.add('active'); }); uploadArea.addEventListener('dragleave', () => { uploadArea.classList.remove('active'); }); uploadArea.addEventListener('drop', (e) => { e.preventDefault(); uploadArea.classList.remove('active'); handleFileUpload(e.dataTransfer.files[0]); }); function handleFileUpload(file) { if (!file) return; if (!file.name.toLowerCase().endsWith('.pdf')) { showStatus('Please upload a PDF file', 'error'); return; } if (file.size > 100 * 1024 * 1024) { showStatus('File size must be less than 100MB', 'error'); return; } uploadedFile = file; // Show file info fileName.textContent = file.name; fileSize.textContent = formatFileSize(file.size); fileInfo.style.display = 'block'; // Enable protect button protectBtn.disabled = false; showStatus('PDF file uploaded successfully! Now set your security options.', 'info'); } // Password strength checker userPassword.addEventListener('input', () => { const password = userPassword.value; let strength = 0; let strengthText = ''; let strengthClass = ''; if (password.length >= 8) strength++; if (/[A-Z]/.test(password)) strength++; if (/[a-z]/.test(password)) strength++; if (/[0-9]/.test(password)) strength++; if (/[^A-Za-z0-9]/.test(password)) strength++; switch(strength) { case 0: case 1: strengthText = 'Very Weak'; strengthClass = 'strength-weak'; break; case 2: strengthText = 'Weak'; strengthClass = 'strength-weak'; break; case 3: strengthText = 'Medium'; strengthClass = 'strength-medium'; break; case 4: strengthText = 'Strong'; strengthClass = 'strength-strong'; break; case 5: strengthText = 'Very Strong'; strengthClass = 'strength-strong'; break; } passwordStrengthBar.className = 'strength-fill ' + strengthClass; passwordStrengthText.textContent = 'Password strength: ' + strengthText; }); // Toggle password visibility document.querySelectorAll('.toggle-password').forEach(button => { button.addEventListener('click', () => { const targetId = button.getAttribute('data-target'); const input = document.getElementById(targetId); const icon = button.querySelector('i'); if (input.type === 'password') { input.type = 'text'; icon.className = 'fas fa-eye-slash'; } else { input.type = 'password'; icon.className = 'fas fa-eye'; } }); }); // Permission selection permissionItems.forEach(item => { item.addEventListener('click', () => { const permission = item.getAttribute('data-permission'); if (selectedPermissions.has(permission)) { selectedPermissions.delete(permission); item.classList.remove('selected'); } else { selectedPermissions.add(permission); item.classList.add('selected'); } }); // Initially select all item.classList.add('selected'); }); // Protect PDF protectBtn.addEventListener('click', async () => { if (!uploadedFile) { showStatus('Please upload a PDF file first', 'error'); return; } const password = userPassword.value.trim(); if (!password) { showStatus('Please enter a user password', 'error'); return; } if (password.length < 4) { showStatus('Password must be at least 4 characters', 'error'); return; } const ownerPass = ownerPassword.value.trim(); const encryption = document.querySelector('input[name="encryption"]:checked').value; // Show loading loading.style.display = 'block'; protectBtn.disabled = true; statusMessage.style.display = 'none'; try { // Create FormData const formData = new FormData(); formData.append('pdf_file', uploadedFile); formData.append('user_password', password); formData.append('owner_password', ownerPass || password); formData.append('encryption_level', encryption); formData.append('permissions', JSON.stringify(Array.from(selectedPermissions))); // Send request const response = await fetch('/api/protect-pdf', { method: 'POST', body: formData }); const result = await response.json(); if (result.success) { protectedFileUrl = result.download_url; downloadBtn.href = protectedFileUrl; downloadBtn.style.display = 'flex'; protectBtn.style.display = 'none'; showStatus('✅ PDF protected successfully! Your document is now secure.', 'success'); } else { showStatus('❌ ' + (result.error || 'Failed to protect PDF'), 'error'); } } catch (error) { showStatus('❌ Network error: ' + error.message, 'error'); } finally { loading.style.display = 'none'; protectBtn.disabled = false; } }); // Reset form resetBtn.addEventListener('click', () => { uploadedFile = null; fileInput.value = ''; fileInfo.style.display = 'none'; userPassword.value = ''; ownerPassword.value = ''; protectedFileUrl = null; downloadBtn.style.display = 'none'; protectBtn.style.display = 'flex'; protectBtn.disabled = true; statusMessage.style.display = 'none'; // Reset permissions selectedPermissions = new Set(['print', 'modify', 'copy', 'annotate']); permissionItems.forEach(item => item.classList.add('selected')); // Reset password strength passwordStrengthBar.className = 'strength-fill'; passwordStrengthText.textContent = 'Password strength: '; showStatus('Form reset. Upload a new PDF to start.', 'info'); }); // Helper functions function formatFileSize(bytes) { if (bytes === 0) return '0 Bytes'; const k = 1024; const sizes = ['Bytes', 'KB', 'MB', 'GB']; const i = Math.floor(Math.log(bytes) / Math.log(k)); return parseFloat((bytes / Math.pow(k, i)).toFixed(2)) + ' ' + sizes[i]; } function showStatus(message, type) { statusMessage.textContent = message; statusMessage.className = 'status-message status-' + type; statusMessage.style.display = 'block'; // Auto-hide success messages after 5 seconds if (type === 'success') { setTimeout(() => { statusMessage.style.display = 'none'; }, 5000); } } // Add active class to current page in navigation document.addEventListener('DOMContentLoaded', function() { const currentPath = window.location.pathname; const navLinks = document.querySelectorAll('nav ul li a'); navLinks.forEach(link => { if (link.getAttribute('href') === currentPath) { link.style.color = 'var(--primary)'; link.style.fontWeight = '600'; } }); });