--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/test_clip_page.py	Mon Sep 15 11:37:51 2025 +0200
@@ -0,0 +1,37 @@
+"""
+Test Page method clip_to_rect.
+"""
+
+import os
+import pymupdf
+
+
+def test_clip():
+    """
+    Clip a Page to a rectangle and confirm that no text has survived
+    that is completely outside the rectangle..
+    """
+    scriptdir = os.path.dirname(os.path.abspath(__file__))
+    rect = pymupdf.Rect(200, 200, 400, 500)
+    filename = os.path.join(scriptdir, "resources", "v110-changes.pdf")
+    doc = pymupdf.open(filename)
+    page = doc[0]
+    page.clip_to_rect(rect)  # clip the page to the rectangle
+    # capture font warning message of MuPDF
+    assert pymupdf.TOOLS.mupdf_warnings() == "bogus font ascent/descent values (0 / 0)"
+    # extract all text characters and assert that each one
+    # has a non-empty intersection with the rectangle.
+    chars = [
+        c
+        for b in page.get_text("rawdict")["blocks"]
+        for l in b["lines"]
+        for s in l["spans"]
+        for c in s["chars"]
+    ]
+    for char in chars:
+        bbox = pymupdf.Rect(char["bbox"])
+        if bbox.is_empty:
+            continue
+        assert bbox.intersects(
+            rect
+        ), f"Character '{char['c']}' at {bbox} is outside of {rect}."