diff --git a/changelogs/fragments/681-restore-custom-format-as-file.yml b/changelogs/fragments/681-restore-custom-format-as-file.yml
new file mode 100644
index 000000000..2b19502dc
--- /dev/null
+++ b/changelogs/fragments/681-restore-custom-format-as-file.yml
@@ -0,0 +1,3 @@
+bugfixes:
+  - postgresql_db - ``restore`` custom format as file instead of stdin to allow the use of --job
+    flag in ``target_opts`` (https://github.com/ansible-collections/community.postgresql/issues/594).
\ No newline at end of file
diff --git a/plugins/modules/postgresql_db.py b/plugins/modules/postgresql_db.py
index 925a8ceff..e131956f1 100644
--- a/plugins/modules/postgresql_db.py
+++ b/plugins/modules/postgresql_db.py
@@ -555,7 +555,7 @@ def db_restore(module, target, target_opts="",
         else:
             return p2.returncode, '', stderr2, 'cmd: ****'
     else:
-        if '--format=Directory' in cmd:
+        if any(substring in cmd for substring in ['--format=Directory', '--format=Custom']):
             cmd = '{0} {1}'.format(cmd, shlex_quote(target))
         else:
             cmd = '{0} < {1}'.format(cmd, shlex_quote(target))