Use pikepdf as context manager

src/documents/migrations/1053_document_pages_count.py

@@ -31,8 +31,7 @@ def add_number_of_pages_to_pages_count(apps, schema_editor):
         )
 
         try:
-            pdf = pikepdf.open(source_path(doc))
-
+            with pikepdf.Pdf.open(source_path(doc)) as pdf:
                 if pdf.pages is not None:
                     doc.pages_count = len(pdf.pages)
                     doc.save()

src/paperless_tesseract/parsers.py

@@ -46,7 +46,7 @@ class RasterisedDocumentParser(DocumentParser):
         if mime_type == "application/pdf":
             import pikepdf
 
-            pdf = pikepdf.open(document_path)
+            with pikepdf.Pdf.open(document_path) as pdf:
                 pages_count = len(pdf.pages)
         return pages_count