Update app.py

app.py

@@ -4,33 +4,36 @@ from PIL import Image
 import img2pdf
 import tempfile
 import os
+import shutil
 
 def resize_pdf(pdf_file, width_percent, height_percent):
     width_percent = float(width_percent)
     height_percent = float(height_percent)
-    
+
+    # ここで恒久的な一時ファイルを作成
+    output_fd, output_path = tempfile.mkstemp(suffix=".pdf")
+    os.close(output_fd)  # すぐ閉じる
+
     with tempfile.TemporaryDirectory() as tmpdir:
-        # PDF → 画像（全ページ）
+        # PDF → 画像
         images = convert_from_path(pdf_file.name, dpi=200, output_folder=tmpdir)
         
         resized_images = []
         for i, img in enumerate(images):
-            # リサイズ幅・高さ計算
             new_width = int(img.width * width_percent / 100)
             new_height = int(img.height * height_percent / 100)
             resized_img = img.resize((new_width, new_height), Image.LANCZOS)
             
-            # 一時保存
             img_path = os.path.join(tmpdir, f"page_{i}.png")
             resized_img.save(img_path, format='PNG')
             resized_images.append(img_path)
         
         # 画像 → PDF
-        output_pdf_path = os.path.join(tmpdir, "resized_output.pdf")
-        with open(output_pdf_path, "wb") as f_out:
+        with open(output_path, "wb") as f_out:
             f_out.write(img2pdf.convert(resized_images))
-        
-        return output_pdf_path
+
+    return output_path
+
 
 with gr.Blocks() as demo:
     gr.Markdown("# PDFサイズを％でリサイズ")