docs: add opendataloader_pdf integration page

[hnc-hyunheejo]

Overview

OpenDataLoader PDF (langchain-opendataloader-pdf) document loader, including installation, initialization, quick start and parameters documentation.

Type of change

Type: New documentation page

Related issues/PRs

• GitHub issue:
• Feature PR:

• Linear issue:
• Slack thread:

Checklist

• I have read the contributing guidelines
• I have tested my changes locally using docs dev
• All code examples have been tested and work correctly
• I have used root relative paths for internal links
• I have updated navigation in src/docs.json if needed
• I have gotten approval from the relevant reviewers
• (Internal team members only / optional) I have created a preview deployment using the Create Preview Branch workflow

Additional notes

• New file: docs/src/oss/python/integrations/document_loaders/opendataloader_pdf.mdx docs/src/oss/python/integrations/providers/opendataloader_pdf.mdx
• Also appended OpenDataLoader PDF to the loader index (index.mdx) and all_providers.mdx for discoverability。