Edit images using n8n and Nano Banana Pro

Step-by-step

1. Add a Form element to the workflow and set the element type to File
2. Insert an Extract from File node between the form and the image generation node
3. Set the operation to Base64 to String and specify the binary field name
4. Open the image generation node and edit the JSON body to include an inline_data property
5. Map the Base64 string from the extraction node into the JSON body's image field
6. Update the text prompt field in the JSON body to pull from the new form input
7. Connect the output to a node that converts the API's Base64 response back into a file

Options

• Limit the types of file formats allowed in the form upload
• Allow single or multiple file uploads

Watch out for

• You cannot send a binary image directly into the prompt; it must be converted to Base64 first
• The API returns a Base64 string which must be converted back to a file to view the result

Tips

• Keep the API URL and credentials the same as your standard generation nodes to save time
• Use the 'Extract from File' node to perform the opposite action of the 'Create' node when handling incoming images

Highlights

“Right. So how do we edit images? Well, it's really simple”