Note: This may only work with documents that are (freely) available without login. There is no support for overwriting the authentication. Also not all freely available files work. Try your luck.
To run this program you need rust/cargo installed. The downloader can be run with this command (execute in the root directory of the repository):
$ cargo run -- <yumpu-url> <output-pdf-file>An example to call this program is cargo run -- https://www.yumpu.com/en/document/read/66625223/lebaron-manuals-92en lebaron-manual-92en.pdf.