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The Office conversion endpoints accept multipart file uploads and return a PDF synchronously.

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Supported Endpoints

EndpointInputCredits
POST /convert/word-to-pdf.docx2
POST /convert/excel-to-pdf.xlsx2
POST /convert/csv-to-pdf.csv1

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Shared Rules

  • Use multipart/form-data
  • Send the file in a file part
  • Include X-API-Key on every request
  • Authenticated uploads are limited to 100 MB
  • Successful responses return application/pdf

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File Validation Notes

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Word

Only valid .docx files are accepted. Corrupted or renamed files are rejected.

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Excel

Only valid .xlsx workbooks are accepted. Corrupted or renamed files are rejected.

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CSV

CSV uploads must contain readable UTF-8 text. If your source exports another encoding, convert it before upload.

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Minimal cURL Pattern

curl --request POST \
  --url https://api.iyzpdf.com/v1/convert/word-to-pdf \
  --header "X-API-Key: $IYZPDF_API_KEY" \
  --form "file=@proposal.docx" \
  --output proposal.pdf
Replace the path and endpoint for Excel or CSV.