In addition, if it it is a large file, please do use resumable uploading (chunk), instead of uploading directly. If you still have the issue, please feel free to contact forge.help AT with a demo PDF file. I'd suggest you try with some other tool like Postman to verify the steps, which may help to diagnose what happened with your JAVA code.

The steps you tried look fine, but probably something malfunctioned with your JAVA code. May I know if it can work when you upload to BIM360 manually? While it looks it is obvious the file has been corrupted after uploading (the icon ahead of the file in BIM360 is a corrupted image). File size can be vary slightly on different OS or environment. After uploading check the response and compare the SHA1. before uploading, make a note with the SHA1 of the file (each programming language has its own method to calculate SHA1). Firstly, the most reliable way to check integrity of file is some hash value such as SHA1 in the response of uploading of Forge file.

Convert octet stream to pdf