Document automation can fail before an LLM sees any text. Scanned pages may need OCR, tables can lose their relationships and repeated headers may pollute retrieval. An AI document processing design should preserve page references so every extracted answer can be traced to its source. Chunking also needs to follow document structure. Splitting a clause from its heading or separating a table from its labels can produce confident answers with the wrong context. https://ai-software-development.net Unclear extraction is a workflow state. It should never become a hidden error. Route unclear pages for review and retain the original file beside normalized text. A document intelligence workflow is easier to debug when each transformation leaves an inspectable record.