PDF, or Portable Document Format, is a popular digital document type. ChatGPT is a product from OpenAI which acts like a chatbot based on GPT technology. GPT stands for Generative Pre-trained Transformer. It is a type of Large Language Model, or LLM. Many companies, including Instabase leverage GPT models as part of their products. GPT models are pre-trained on billions of input data, and are used to help understand language in a similar way humans would. Document or PDF Automation is the concept of AI models such as deep learning, automatically understanding documents like PDF in a similar way humans would and then propose actions on the conclusions. Together, PDF Automation and ChatGPT refer to the idea of leveraging GPT technology to automate (PDF) document heavy processes. Advanced companies like Instabase leverage GPT models to automate document heavy processes.