Fix docx parser line bug (#1715)

### What problem does this PR solve?
#1704 

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

---------

Co-authored-by: Kevin Hu <kevinhu.sh@gmail.com>

deepdoc/parser/pdf_parser.py

@@ -952,7 +952,7 @@ class RAGFlowPdfParser:
                 fnm, str) else pdfplumber.open(BytesIO(fnm))
             self.page_images = [p.to_image(resolution=72 * zoomin).annotated for i, p in
                                 enumerate(self.pdf.pages[page_from:page_to])]
-            self.page_chars = [[{**c, 'top': max(0, c['top'] - 10), 'bottom': max(0, c['bottom'] - 10)} for c in page.dedupe_chars().chars if self._has_color(c)] for page in
+            self.page_chars = [[{**c, 'top': c['top'], 'bottom': c['bottom']} for c in page.dedupe_chars().chars if self._has_color(c)] for page in
                                self.pdf.pages[page_from:page_to]]
             self.total_page = len(self.pdf.pages)
         except Exception as e:

rag/app/naive.py

@@ -23,6 +23,8 @@ from rag.utils import num_tokens_from_string
 from PIL import Image
 from functools import reduce
 from markdown import markdown
+
+
 class Docx(DocxParser):
     def __init__(self):
         pass
@@ -81,7 +83,8 @@ class Docx(DocxParser):
                     continue
                 if 'w:br' in run._element.xml and 'type="page"' in run._element.xml:
                     pn += 1
-        new_line = [(line[0], reduce(concat_img, line[1])) for line in lines]
+        new_line = [(line[0], reduce(concat_img, line[1]) if line[1] else None) for line in lines]
+
         tbls = []
         for tb in self.doc.tables:
             html= "<table>"