The Internet Archive sometimes has older editions (e.g., 3rd edition) available for with a free account. Search: "Longman Dictionary of Contemporary English" archive.org
While a can be a handy backup for offline study, it cannot compete with the interactive nature of the online site or the app. If you do choose to download a PDF, look for the 6th Edition , as it contains the most up-to-date "Corpus" (real-world usage) data available. Introduction 1-hour loans The Internet Archive sometimes has
If you're unable to find a free PDF version of the LDOCE or prefer a different dictionary, consider these alternatives: A short write-up describing the Longman Dictionary of