I want to try this, but it's stuck at processing, showing 100% but not usable.

I‘ve tried a lot of chat-with-pdf apps, including ChatDOC, ChatPDF, Humata and others. For serious paper reading, I must say that ChatDOC(https://chatdoc.com/) is the best option.

The accuracy of ChatDOC’s understanding of tables, data, and texts is significantly higher than other products. Also you can upload a folder of files and chat with the collection, easily navigating through each one.

For example: https://chatdoc.com/chatdoc/#/share/ub8Z7aarcXJHY_SzGwl3LFVw...

I uploaded a paper about GPT and asked ChatDOC to summarize the main content, explain the experimental data, and find relevant data. It completed all these tasks very well. Amazing.