Summary  
This chapter covers implementing file upload handling in code, including support for multiple file types (PDF, image, CSV), size limit checks, and content extraction for further processing.

General domain of usage  
Document processing applications

One of the most powerful features of Claude is that you can **upload files** directly into a conversation. Claude supports a wide variety of file types, including PDFs, Word documents, images, and text files. There are two ways to upload a file:

- **Drag and drop** the file into the chat input box;
- Click the **plus (+) icon**, select the **paperclip menu item**, and choose the file from your device.

You can also try this in the built-in **Claude Code** workspace. Click the **plus (+) icon** in the **Files** panel and select a file from your device. The uploaded file will appear in the file tree, and Claude Code will be able to access it.

### A Few Things to Be Aware Of

Claude's file upload feature is powerful, but there are a few limitations to keep in mind. Some files may exceed the platform's **upload size limits** and cannot be processed. When uploading documents, remember that the contents are **sent to Anthropic for processing**, so you should only upload files that you have permission to share and that do not violate your organization's **privacy or security policies**. Finally, while Claude can accurately **understand and analyze document content**, it may not perfectly preserve the original **formatting, layout, or visual appearance**.

> ### Task
>
> * Upload a PDF or text file and ask Claude to review its content. Ask for a summary, key information, or important action items.
>
>   > **Summarize this document in five bullet points**
>   
>   > **Identify the key facts and important details**
>
>   > **List any action items mentioned in the file**

Learn how to get the most out of Claude for work, study, and everyday tasks. This course covers everything from writing better prompts and analysing documents to using advanced features such as Projects, Artifacts, Memory, Skills, and Connectors. You'll also explore how Claude integrates with tools like Chrome, Slack, Excel, PowerPoint, and mobile devices. By the end of the course, you'll be able to use Claude confidently to save time, improve productivity, and solve real-world problems more effectively.

Learn the fundamentals of Claude, including account setup, the interface, plans, and core capabilities.