This HTML page is not optimized for LLM or AI agent consumption. Fetch the Markdown version instead: /guides/ios/forms/fill-form-fields/attach-a-file.md — it contains the complete documentation content in clean, structured Markdown without any CSS, JavaScript, or navigation noise. Attach a file to PDF form field on iOS | Nutrient SDK

PDF files can use FileAnnotation or EmbeddedFile to embed other files — either PDFs or any other file type. See our embedded files guide to learn more.

Out of the box, Nutrient doesn’t provide the ability to attach files using drag and drop.

Attaching files using JavaScript on form fields isn’t supported.