Amazon and Google Books sell the official eBook version of the current edition. It is usually priced between $15 and $25. You get searchable text, high-quality images, and updated recipes. This is the "PDF" experience without the guilt or the viruses.
If you truly want a free scanned copy of the old 1961 edition for historical research, go to Archive.org . They have a digitized version you can "borrow" or read online legally. Search for "Larousse Gastronomique 1961" there. It isn't the current English standard, but it is a fun time capsule. larousse gastronomique pdf english download
The 1961 edition is too old to be truly useful for a modern cook, and the current edition is worth paying a few dollars for. Amazon and Google Books sell the official eBook
If you are serious about cooking, the Larousse is a necessity. Just don't treat it like a free mixtape. Treat it like a textbook. Buy the official eBook, keep it on your phone, and finally win that argument about whether a "pantry" is just a fancy closet. (Spoiler: It’s not.) Have you ever cooked from an old edition of Larousse? Let me know in the comments—just don't serve me anything containing "aspic." This is the "PDF" experience without the guilt