Update app.py

app.py

@@ -5,6 +5,7 @@ import tempfile
 import zipfile
 
 def extract_text(pdf_file):
+    pdf_file.seek(0)
     doc = fitz.open(stream=pdf_file.read(), filetype="pdf")
     text = ""
     for page in doc:
@@ -12,6 +13,7 @@ def extract_text(pdf_file):
     return text, None
 
 def extract_images(pdf_file):
+    pdf_file.seek(0)
     doc = fitz.open(stream=pdf_file.read(), filetype="pdf")
     output_dir = tempfile.mkdtemp()
     img_count = 0
@@ -28,7 +30,7 @@ def extract_images(pdf_file):
                 with open(image_filename, "wb") as image_file:
                     image_file.write(image_bytes)
                 img_count += 1
-            except Exception as e:
+            except Exception:
                 continue
 
     if img_count == 0:
@@ -45,6 +47,7 @@ def extract_images(pdf_file):
 def merge_pdfs(pdf_files):
     merged_pdf = fitz.open()
     for pdf_file in pdf_files:
+        pdf_file.seek(0)
         with fitz.open(stream=pdf_file.read(), filetype="pdf") as doc:
             merged_pdf.insert_pdf(doc)
     temp_path = tempfile.mktemp(suffix=".pdf")
@@ -52,6 +55,7 @@ def merge_pdfs(pdf_files):
     return "PDFs merged successfully.", temp_path
 
 def split_pdf(pdf_file):
+    pdf_file.seek(0)
     doc = fitz.open(stream=pdf_file.read(), filetype="pdf")
     output_dir = tempfile.mkdtemp()
     for page_num in range(len(doc)):