fix: save all pages instead of last only

app.py

@@ -12,11 +12,13 @@ def pdf_to_image(pdf_file, path, progress):
     # Convert the PDF to a PNG image using pdf2image
     doc = fitz.open(pdf_file.name)  # open document
     fnames = []
+    idx = 1
     for page in progress.tqdm(doc, desc="Converting PDF to image"):
         pix = page.get_pixmap()
-        output = f"{path}/page.png"
+        output = f"{path}/page-{idx}.png"
         pix.save(output)
         fnames.append(output)
+        idx += 1
     return fnames
 
 def tesseract_ocr(image, progress=gr.Progress()):