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Sweep 22 Oct 2026 · 21:04Z Build v2.1.309 528 read Stable v2.1.308 Latest v2.1.309 Next v2.1.309 Feeds RSS JSON llms.txt llms-full.txt Unofficial
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pdf-support changedbuild-with-claude/pdf-support

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8585</Note>
8686 
8787<Note>
88 Plain text files such as .txt, .csv, or .md can be used directly in document blocks: upload them to the Files API with MIME type `text/plain` and reference them by `file_id`. Binary formats such as .xlsx or .docx are not supported in document blocks and must be converted to text or PDF first. See [Working with other file formats](https://platform.claude.com/docs/en/build-with-claude/files#working-with-other-file-formats).
88 Plain text files such as .txt, .csv, or .md can be used directly in document blocks: upload them to the Files API with MIME type `text/plain` and reference them by `file_id`. Binary formats such as .xlsx or .docx are not supported in document blocks, so convert them to text or PDF first. See [Working with other file formats](https://platform.claude.com/docs/en/build-with-claude/files#working-with-other-file-formats).
8989</Note>
9090 
9191## Process PDFs with Claude
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350350The response returns Claude's analysis as text blocks in `content`, with token consumption in `usage`:
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352```text Output
352```json Output
353353{
354354 "id": "msg_01Hfp8YuFjQ55VgWbpdHDehB",
355355 "type": "message",
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