diff --git a/document_detector.py b/document_detector.py
new file mode 100644
index 0000000..7190eaf
--- /dev/null
+++ b/document_detector.py
@@ -0,0 +1,97 @@
+import cv2
+import numpy as np
+import sys
+import json
+from pathlib import Path
+
+def order_points(pts):
+    rect = np.zeros((4, 2), dtype="float32")
+    s = pts.sum(axis=1)
+    rect[0] = pts[np.argmin(s)]
+    rect[2] = pts[np.argmax(s)]
+    diff = np.diff(pts, axis=1)
+    rect[1] = pts[np.argmin(diff)]
+    rect[3] = pts[np.argmax(diff)]
+    return rect
+
+def process_document(image_path, output_path):
+    try:
+        # Carrega e verifica a imagem
+        image = cv2.imread(str(image_path))
+        if image is None:
+            raise Exception("Não foi possível carregar a imagem")
+
+        original = image.copy()
+        
+        # Pré-processamento
+        gray = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)
+        blurred = cv2.GaussianBlur(gray, (5, 5), 0)
+        edges = cv2.Canny(blurred, 50, 150)
+
+        # Encontra contornos
+        contours, _ = cv2.findContours(edges, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)
+        if not contours:
+            raise Exception("Nenhum contorno encontrado")
+
+        # Ordena contornos por área
+        contours = sorted(contours, key=cv2.contourArea, reverse=True)
+        doc_corners = None
+
+        # Procura o documento
+        for contour in contours:
+            peri = cv2.arcLength(contour, True)
+            approx = cv2.approxPolyDP(contour, 0.02 * peri, True)
+            if len(approx) == 4:
+                doc_corners = approx
+                break
+
+        if doc_corners is None:
+            raise Exception("Documento não encontrado")
+
+        # Processa cantos e aplica transformação
+        doc_corners = doc_corners.reshape(4, 2)
+        ordered_corners = order_points(doc_corners)
+
+        (tl, tr, br, bl) = ordered_corners
+        widthA = np.linalg.norm(br - bl)
+        widthB = np.linalg.norm(tr - tl)
+        maxWidth = max(int(widthA), int(widthB))
+
+        heightA = np.linalg.norm(tr - br)
+        heightB = np.linalg.norm(tl - bl)
+        maxHeight = max(int(heightA), int(heightB))
+
+        dst = np.array([
+            [0, 0],
+            [maxWidth - 1, 0],
+            [maxWidth - 1, maxHeight - 1],
+            [0, maxHeight - 1]
+        ], dtype="float32")
+
+        # Aplica transformação perspectiva
+        matrix = cv2.getPerspectiveTransform(ordered_corners, dst)
+        warped = cv2.warpPerspective(original, matrix, (maxWidth, maxHeight))
+
+        # Salva resultado
+        cv2.imwrite(str(output_path), warped)
+        
+        return {
+            "success": True,
+            "message": "Processamento concluído com sucesso",
+            "width": maxWidth,
+            "height": maxHeight
+        }
+
+    except Exception as e:
+        return {
+            "success": False,
+            "message": str(e)
+        }
+
+if __name__ == "__main__":
+    if len(sys.argv) != 3:
+        print(json.dumps({"success": False, "message": "Argumentos inválidos"}))
+        sys.exit(1)
+
+    result = process_document(Path(sys.argv[1]), Path(sys.argv[2]))
+    print(json.dumps(result))
diff --git a/document_history.php b/document_history.php
new file mode 100644
index 0000000..5681ca4
--- /dev/null
+++ b/document_history.php
@@ -0,0 +1,85 @@
+<?php
+if (!isset($_SESSION['user_id'])) {
+    header("Location: login.php");
+    exit();
+}
+
+// Conectar ao banco de dados
+$mysqli = new mysqli("10.15.0.42", "root", "34641747", "valida");
+
+if ($mysqli->connect_error) {
+    die("Connection failed: " . $mysqli->connect_error);
+}
+
+// Buscar histórico de documentos processados
+$query = "SELECT pd.*, u.username FROM processed_documents pd 
+          LEFT JOIN users u ON pd.user_id = u.id 
+          ORDER BY pd.created_at DESC";
+$result = $mysqli->query($query);
+?>
+
+<div class="container">
+    <h2>Histórico de Documentos Processados</h2>
+    
+    <table class="data-table">
+        <thead>
+            <tr>
+                <th>Data/Hora</th>
+                <th>Usuário</th>
+                <th>Documento Original</th>
+                <th>Documento Processado</th>
+                <th>Ações</th>
+            </tr>
+        </thead>
+        <tbody>
+            <?php while ($row = $result->fetch_assoc()): ?>
+            <tr>
+                <td><?php echo date('d/m/Y H:i:s', strtotime($row['created_at'])); ?></td>
+                <td><?php echo htmlspecialchars($row['username']); ?></td>
+                <td>
+                    <a href="<?php echo htmlspecialchars($row['original_path']); ?>" target="_blank">
+                        Ver Original
+                    </a>
+                </td>
+                <td>
+                    <a href="<?php echo htmlspecialchars($row['processed_path']); ?>" target="_blank">
+                        Ver Processado
+                    </a>
+                </td>
+                <td>
+                    <button onclick="deleteDocument(<?php echo $row['id']; ?>)" class="delete-btn">
+                        Excluir
+                    </button>
+                </td>
+            </tr>
+            <?php endwhile; ?>
+        </tbody>
+    </table>
+</div>
+
+<script>
+function deleteDocument(id) {
+    if (confirm('Tem certeza que deseja excluir este documento?')) {
+        fetch('delete_document.php', {
+            method: 'POST',
+            headers: {
+                'Content-Type': 'application/json',
+            },
+            body: JSON.stringify({id: id})
+        })
+        .then(response => response.json())
+        .then(data => {
+            if (data.success) {
+                alert('Documento excluído com sucesso!');
+                location.reload();
+            } else {
+                alert('Erro ao excluir documento: ' + data.message);
+            }
+        })
+        .catch(error => {
+            console.error('Error:', error);
+            alert('Erro ao excluir documento');
+        });
+    }
+}
+</script>
diff --git a/menu.php b/menu.php
index afd199e..3b39a3a 100644
--- a/menu.php
+++ b/menu.php
@@ -12,7 +12,7 @@ if (!isset($_SESSION['user_id'])) {
         <li>
             <a href="javascript:void(0);" onclick="toggleSubmenu('submenu1')">Autenticador de Provas Digitais</a>
             <ul id="submenu1" class="submenu">
-                <li><a href="index.php?page=upload">Upload de Arquivos</a></li>
+                <li><a href="/prova/upload_prova.php">Upload de Arquivos</a></li>
                 <li><a href="index.php?page=status">Ver Status</a></li>
                 <li><a href="index.php?page=list_files">Lista de Arquivos Processados</a></li>
             </ul>
diff --git a/style.css b/style.css
index 4eb5acf..2723ee2 100644
--- a/style.css
+++ b/style.css
@@ -209,3 +209,50 @@ textarea {
 #search-button:hover {
     background-color: #0056b3;
 }
+
+/* Estilos para processamento de documentos */
+.upload-form {
+    max-width: 600px;
+    margin: 20px auto;
+    padding: 20px;
+    background: #f5f5f5;
+    border-radius: 5px;
+}
+
+.result-preview {
+    margin-top: 30px;
+}
+
+.image-comparison {
+    display: flex;
+    justify-content: space-around;
+    margin-top: 20px;
+    flex-wrap: wrap;
+}
+
+.image-comparison img {
+    max-width: 45%;
+    height: auto;
+    margin: 10px;
+    border: 1px solid #ddd;
+    box-shadow: 0 0 5px rgba(0,0,0,0.2);
+}
+
+.alert {
+    padding: 15px;
+    margin-bottom: 20px;
+    border: 1px solid transparent;
+    border-radius: 4px;
+}
+
+.alert-success {
+    color: #155724;
+    background-color: #d4edda;
+    border-color: #c3e6cb;
+}
+
+.alert-error {
+    color: #721c24;
+    background-color: #f8d7da;
+    border-color: #f5c6cb;
+}
diff --git a/upload.php b/upload.php
new file mode 100644
index 0000000..c320ed6
--- /dev/null
+++ b/upload.php
@@ -0,0 +1,64 @@
+<!DOCTYPE html>
+<html lang="pt-BR">
+<head>
+    <meta charset="UTF-8">
+    <title>Processador de Documentos</title>
+    <style>
+        .preview { max-width: 800px; margin: 20px 0; }
+        .preview img { max-width: 100%; }
+        #result { display: none; }
+        .error { color: red; }
+    </style>
+</head>
+<body>
+    <form id="uploadForm" enctype="multipart/form-data">
+        <input type="file" name="document" accept="image/jpeg,image/png" required>
+        <button type="submit">Processar Documento</button>
+    </form>
+
+    <div id="result">
+        <h3>Resultado do Processamento:</h3>
+        <div class="preview">
+            <h4>Documento Original:</h4>
+            <img id="originalImage" src="" alt="Original">
+        </div>
+        <div class="preview">
+            <h4>Documento Processado:</h4>
+            <img id="processedImage" src="" alt="Processado">
+        </div>
+    </div>
+
+    <div id="error" class="error"></div>
+
+    <script>
+        document.getElementById('uploadForm').onsubmit = async (e) => {
+            e.preventDefault();
+            
+            const formData = new FormData(e.target);
+            const resultDiv = document.getElementById('result');
+            const errorDiv = document.getElementById('error');
+            
+            try {
+                const response = await fetch('process_document.php', {
+                    method: 'POST',
+                    body: formData
+                });
+                
+                const result = await response.json();
+                
+                if (result.success) {
+                    document.getElementById('originalImage').src = result.original;
+                    document.getElementById('processedImage').src = result.file;
+                    resultDiv.style.display = 'block';
+                    errorDiv.textContent = '';
+                } else {
+                    throw new Error(result.message);
+                }
+            } catch (error) {
+                errorDiv.textContent = error.message;
+                resultDiv.style.display = 'none';
+            }
+        };
+    </script>
+</body>
+</html>