Hi there!
We just added this in the latest release (v0.0.2). You can now create a document collection and upload as many PDFs into it as needed. The documents are processed in the background and once processing finishes, you can create as many chats with it as needed.
Quick demo: https://youtu.be/PwvfVx8VCoY Installation Instructions: https://github.com/SecureAI-Tools/SecureAI-Tools?tab=readme-...
Please try it out, and let me know how it goes. We're always looking to improve the tool so let us know if you have any feedback for us :)