While the OED is currently available as a high-tech subscription-based website, the archived PDF versions offer unique benefits:
Because these PDF files are often hundreds of megabytes, they can be slow to load. To make your research more efficient, use a PDF reader that supports "Optical Character Recognition" (OCR). This allows you to use the Ctrl+F function to search for specific words within the scanned pages. Without OCR, you will have to manually scroll through the pages just like you would with a physical book. oxford english dictionary pdf archive.org
When searching for an OED PDF, it is important to know which version you are looking at: While the OED is currently available as a
The foundational work led by James Murray. It is the most common version found on Archive.org. oxford english dictionary pdf archive.org