Wait, Adobe Reader XI was released in 2012, and the latest version is DC. So this is a really old version. They might be after a version that's been updated with a Spanish language pack. But Adobe usually provides different language versions as separate downloads. Maybe the user is looking for a patched version or a modified one that combines the software with a Spanish GUI. However, distributing modified software could be illegal if it's not from Adobe.
Wait, Adobe Reader XI was released in 2012, and the latest version is DC. So this is a really old version. They might be after a version that's been updated with a Spanish language pack. But Adobe usually provides different language versions as separate downloads. Maybe the user is looking for a patched version or a modified one that combines the software with a Spanish GUI. However, distributing modified software could be illegal if it's not from Adobe.