This n8n workflow automates the process of extracting images from a PDF document stored on Google Drive, analyzing these images using OpenAI’s GPT-4 model, and compiling the analysis results into a text file. The process begins with downloading a specific PDF file from Google Drive, then extracting all images embedded within the PDF via the ConvertAPI. Each image URL is subsequently analyzed with GPT-4 to generate detailed descriptions or insights. The individual analyses are then merged into one cohesive content block, which is finally saved as a .txt file for easy access and review.
The workflow involves key nodes including a manual trigger, Google Drive file download, API calls for image extraction, image analysis with OpenAI, data merging, and file output. It is designed to be flexible and can be triggered by other events, such as Google Drive changes, with minimal adjustments.
Practical use cases include content creation, research, or project documentation, especially in scenarios requiring automated visual content interpretation from PDFs, such as academic research, legal case analysis, or digital asset management.
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