diff --git a/src/openparse/schemas.py b/src/openparse/schemas.py
index 0476f87..73f8660 100644
--- a/src/openparse/schemas.py
+++ b/src/openparse/schemas.py
@@ -590,9 +590,12 @@ def reading_order(self) -> ReadingOrder:
 
         if self.coordinate_system == "bottom-left":
             y_position = -min(element.bbox.y0 for element in self.elements)
+        # Add support for top-left coordinate system for sorting
+        elif self.coordinate_system == "top-left":
+            y_position = min(element.bbox.y0 for element in self.elements)
         else:
             raise NotImplementedError(
-                "Only 'bottom-left' coordinate system is supported."
+                "Only 'top-left' and 'bottom-left' coordinate system is supported."
             )
 
         return ReadingOrder(min_page=min_page, y_position=y_position, min_x0=min_x0)
diff --git a/src/openparse/tables/parse.py b/src/openparse/tables/parse.py
index 54ffbbb..e491073 100644
--- a/src/openparse/tables/parse.py
+++ b/src/openparse/tables/parse.py
@@ -68,18 +68,19 @@ def _ingest_with_pymupdf(
             if verbose:
                 print(f"Page {page_num} - Table {i + 1}:\n{text}\n")
 
-            # Flip y-coordinates to match the top-left origin system
             bbox = pymupdf.combine_header_and_table_bboxes(tab.bbox, tab.header.bbox)
-            fy0 = page.rect.height - bbox[3]
-            fy1 = page.rect.height - bbox[1]
+            # No need for flipping coordinates, pymupdf already returns coordinates in top-left origin system and bottom-left is handled while sorting
+            # # Flip y-coordinates to match the top-left origin system
+            # fy0 = page.rect.height - bbox[3]
+            # fy1 = page.rect.height - bbox[1]
 
             table = TableElement(
                 bbox=Bbox(
                     page=page_num,
                     x0=bbox[0],
-                    y0=fy0,
+                    y0=bbox[1],
                     x1=bbox[2],
-                    y1=fy1,
+                    y1=bbox[3],
                     page_width=page.rect.width,
                     page_height=page.rect.height,
                 ),
@@ -131,18 +132,19 @@ def _ingest_with_table_transformers(
             elif args.table_output_format == "html":
                 table_text = table.to_html_str()
 
-            # Flip y-coordinates to match the top-left origin system
-            # FIXME: incorporate padding into bbox
-            fy0 = page.rect.height - table_bbox.bbox[3]
-            fy1 = page.rect.height - table_bbox.bbox[1]
+            # No need for flipping coordinates, pymupdf already returns coordinates in top-left origin system and bottom-left is handled while sorting
+            # # Flip y-coordinates to match the top-left origin system
+            # # FIXME: incorporate padding into bbox
+            # fy0 = page.rect.height - table_bbox.bbox[3]
+            # fy1 = page.rect.height - table_bbox.bbox[1]
 
             table_elem = TableElement(
                 bbox=Bbox(
                     page=page_num,
                     x0=table_bbox.bbox[0],
-                    y0=fy0,
+                    y0=table_bbox.bbox[1],
                     x1=table_bbox.bbox[2],
-                    y1=fy1,
+                    y1=table_bbox.bbox[3],
                     page_width=page.rect.width,
                     page_height=page.rect.height,
                 ),
@@ -193,18 +195,19 @@ def _ingest_with_unitable(
             table_img = crop_img_with_padding(pdf_as_imgs[page_num], padded_bbox)
 
             table_str = table_img_to_html(table_img)
-
-            # Flip y-coordinates to match the top-left origin system
-            fy0 = page.rect.height - padded_bbox[3]
-            fy1 = page.rect.height - padded_bbox[1]
+            
+            # No need for flipping coordinates, pymupdf already returns coordinates in top-left origin system and bottom-left is handled while sorting
+            # # Flip y-coordinates to match the top-left origin system
+            # fy0 = page.rect.height - padded_bbox[3]
+            # fy1 = page.rect.height - padded_bbox[1]
 
             table_elem = TableElement(
                 bbox=Bbox(
                     page=page_num,
                     x0=padded_bbox[0],
-                    y0=fy0,
+                    y0=padded_bbox[1],
                     x1=padded_bbox[2],
-                    y1=fy1,
+                    y1=padded_bbox[3],
                     page_width=page.rect.width,
                     page_height=page.rect.height,
                 ),
diff --git a/src/openparse/text/pymupdf/core.py b/src/openparse/text/pymupdf/core.py
index 74abc0c..08c9379 100644
--- a/src/openparse/text/pymupdf/core.py
+++ b/src/openparse/text/pymupdf/core.py
@@ -80,17 +80,18 @@ def ingest(
 
             lines = _lines_from_ocr_output(node["lines"])
 
-            # Flip y-coordinates to match the top-left origin system
-            fy0 = page.rect.height - node["bbox"][3]
-            fy1 = page.rect.height - node["bbox"][1]
+            # No need for flipping coordinates, pymupdf already returns coordinates in top-left origin system and bottom-left is handled while sorting
+            # # Flip y-coordinates to match the top-left origin system
+            # fy0 = page.rect.height - node["bbox"][3]
+            # fy1 = page.rect.height - node["bbox"][1]
 
             elements.append(
                 TextElement(
                     bbox=Bbox(
                         x0=node["bbox"][0],
-                        y0=fy0,
+                        y0=node["bbox"][1],
                         x1=node["bbox"][2],
-                        y1=fy1,
+                        y1=node["bbox"][3],
                         page=page_num,
                         page_width=page.rect.width,
                         page_height=page.rect.height,