[BUG] Could not process PDF

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

I encountered an error while trying to read a PDF file in Claude Code.
I am using the PDF skill to handle the file.
It was working fine up until about six hours ago.

The PDF file size is 6 MB.

What Should Happen?

The expected behavior was that Claude Code would be able to read the file and generate a summary analysis, or create a Markdown (md) file.

Error Messages/Logs

API Error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"Could not process PDF"},"request_id":"req_011CXPwGorTXH9G8F8Ck3GWt"}

Steps to Reproduce

Read the PDF file and summarize it.

Claude Model

Opus

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.17

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

IntelliJ IDEA terminal

Additional Information

_No response_