Hi Tyler 

Thanks for posting in the Lucidchart Community! The best way for you to accomplish that is to export each one of the documents to PDF and then combine the resulting files into a single PDF using a free online tool. If your computer is a Mac you can use Preview to combine the resulting PDFs. 

To go over the details of how to export your documents to PDFs please take a look at our Export/Download Your Lucidchart Documents article from the Lucidchart Help Center and let me know if you have any further questions.