更改从pdf中切图的方式

@@ -10,9 +10,9 @@ from io import BytesIO
 from unicodedata import normalize
 
 # 页面保存为png图片参数
-ZOOM_X_1 = ZOOM_Y_1 = 1.0
-ZOOM_X_2 = ZOOM_Y_2 = 2.0
-ZOOM_X_3 = ZOOM_Y_3 = 3.0
+ZOOM_X_1 = ZOOM_Y_1 = 3.0
+ZOOM_X_2 = ZOOM_Y_2 = 5.0
+ZOOM_X_3 = ZOOM_Y_3 = 7.0
 trans_1 = fitz.Matrix(ZOOM_X_1, ZOOM_X_1).preRotate(0)  # zoom factor 1 in each dimension
 trans_2 = fitz.Matrix(ZOOM_X_2, ZOOM_X_2).preRotate(0)  # zoom factor 2 in each dimension
 trans_3 = fitz.Matrix(ZOOM_X_3, ZOOM_X_3).preRotate(0)  # zoom factor 3 in each dimension
@@ -345,7 +345,7 @@ class PDFHandler:
         # 3.3 碎图分组大于2、全过滤、含特殊filter，特殊处理：整个页面保存为png图片
         if page_to_png:
             page = pdf.loadPage(pno)
-            self.page_to_png(page)
+            self.page_to_png(page, is_big_img=True)
 
     def title_is_ebank(self, char):
         new_char = normalize('NFKC', char)
@@ -450,7 +450,7 @@ class PDFHandler:
                     # 1.页面图片对象数目为0时，保存整个页面为png图片
                     if self.is_e_pdf or self.is_ebank or len(il) == 0:
                         page = pdf.loadPage(pno)
-                        self.page_to_png(page)
+                        self.page_to_png(page, is_big_img=True)
                     # 2.页面图片对象数目为1时：
                     # 小图(如电子账单的盖章)：保存整个页面为png图片
                     # 大图：提取图片对象
@@ -459,13 +459,13 @@ class PDFHandler:
                         # 小图
                         if width < WH_COUPLE_1[0] and height < WH_COUPLE_1[1]:
                             page = pdf.loadPage(pno)
-                            self.page_to_png(page)
+                            self.page_to_png(page, is_big_img=True)
                         # 大图
                         elif width >= WH_COUPLE_6[0] or height >= WH_COUPLE_6[1]:
                             self.is_new_modify = 1
                             is_big_img = (width < WH_COUPLE_7[0] and height < WH_COUPLE_7[1]) # 防止图片过大
                             page = pdf.loadPage(pno)
-                            self.page_to_png(page, is_big_img=is_big_img) 
+                            self.page_to_png(page, is_big_img=True) 
                         elif xref not in self.xref_set:
                             self.extract_single_image(pdf, xref, smask, colorspace, pno)
                     # 3.页面图片对象数目大于1时，特殊处理
@@ -480,7 +480,7 @@ class PDFHandler:
         with fitz.Document(self.path) as pdf:
             for pno in range(pdf.pageCount):
                 page = pdf.loadPage(pno)
-                self.page_to_png(page)
+                self.page_to_png(page, is_big_img=True)
         self.img_count = len(self.img_path_list)
 
     def ebank_draw(self):