1. Identify the document type (PDF, DOCX, PPTX, XLSX).
2. Determine the required operation (extraction, merging, creation, editing).
3. Select the appropriate tool or library for the task.
4. Load the document into the chosen tool.
5. Perform the specified operation with the required parameters.
6. Save the modified or created document.
7. Validate the output to ensure correctness.