✅ Add merge_jpg_to_pdf method to CreatePDF class

src/modules/create_pdf.py

@@ -1,6 +1,7 @@
 """Merge the images of books into PDF files"""
 
-
+import os
+import img2pdf
 from .link_parse import LinkFile, Link
 
 
@@ -13,3 +14,25 @@ class CreatePDF:
 
     def __init__(self, links: list[Link]) -> None:
         self.links = links
+
+    @staticmethod
+    def merge_jpg_to_pdf(directory, book_name) -> None:
+        """Merge all JPG images in a directory into a single PDF.
+
+        Args:
+            directory (str): The directory containing the JPG images.
+            output_filename (str): The filename of the output PDF.
+
+        Returns:
+            None
+        """
+        jpg_files = [f for f in os.listdir(directory) if f.endswith('.jpg')]
+        jpg_files.sort()
+        jpg_files = [os.path.join(directory, f) for f in jpg_files]
+        if jpg_files:
+            pdf_bytes = img2pdf.convert(jpg_files)
+            if pdf_bytes is not None:
+                with open(book_name, 'wb') as f:
+                    f.write(pdf_bytes)
+        else:
+            print("No JPG images found in the directory.")