Seeking early feedback on my new All-in-One PDF tool!

Hi everyone! I've just scheduled my new Android app, "PDF Reader - Editor, Scan & TTS", for launch. I'm looking for some early feedback from this amazing community. What is the one feature you wish every PDF app had? I've integrated a high-quality scanner and a Text-to-Speech engine to keep everything in one place. I would love to hear your thoughts and suggestions!