docs: improve intro example

1 files changed, 5 insertions, 4 deletions

diff --git a/docs/index.rst b/docs/index.rst
index 25778b2..b93ba07 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -27,10 +27,11 @@ to encrypted PDFs.
 
    # Rotate all pages in a file by 180 degrees
    import pikepdf
-   my_pdf = pikepdf.Pdf.open('test.pdf')
-   for page in my_pdf.pages:
-      page.Rotate = 180
-   my_pdf.save('test-rotated.pdf')
+
+   with pikepdf.Pdf.open('test.pdf') as my_pdf:
+       for page in my_pdf.pages:
+           page.Rotate = 180
+       my_pdf.save('test-rotated.pdf')
 
 It is a low level library that requires knowledge of PDF internals and some
 familiarity with the `PDF specification