PDF to DOCX API

Turn a PDF into a Word document you can edit. The result is the text of the PDF as real paragraphs, not a picture of each page.

How it converts

calibre converts PDF to DOCX.

  • A PDF stores positioned text, not paragraphs, so calibre rebuilds paragraphs from it. Single-column text converts well; multi-column layouts, tables and forms lose their arrangement.
  • Scanned PDFs are images of text and convert to almost nothing. OCR is not supported yet.

Questions

Does the Word file keep the PDF’s page layout?
No. A PDF stores positioned text, not paragraphs, so calibre rebuilds paragraphs from it. Single-column text converts well; multi-column layouts, tables and forms lose their arrangement.
Can it convert a scanned PDF?
Scanned PDFs are images of text and convert to almost nothing. OCR is not supported yet.

Plans and limits

Price
5 free conversions every month. Pro is $9 a month for 1,500, Scale $39 for 10,000. PDF to DOCX costs the same as any other pair.
Largest file
25 MB on Free, 100 MB on Pro, 250 MB on Scale.
Failed conversions
Never billed, and they don’t count toward your plan.
Your files
Deleted within 24 hours, along with the converted result.
How to call it
The REST API, described by an OpenAPI spec, or the MCP server from Claude or any other MCP client. Both use the same API key and quota.