Another good option is OpenL, which can handle more than 100 languages and translate PDF, Word and PNG files. It's got a free plan with 30 daily credits and several paid plans for different levels of use. OpenL prioritizes privacy, wiping out translation data as soon as it's done, so it's a good choice if you're concerned about that.
If you need something more mobile centric, WhatLetter lets you translate documents by taking a photo and offers AI chatbot help in more than 30 languages. It's private, so your photos and chat history are kept secret. It's good for personal documents, travel and business communications.
Last, Immersivetranslate is a free browser extension that translates web pages, documents and video subtitles in multiple languages. It can use a variety of engines, including DeepL and Google Translate, and works with multiple browsers, so it's a good tool for researchers and businesspeople who need to translate documents all the time.