PDF to PDF/A API

Quick start

Convert any PDF to archival-ready PDF/A (default PdfA2b) with one simple POST call.

curl -X POST https://v2.convertapi.com/convert/pdf/to/pdfa \
  -H "Authorization: Bearer <API_TOKEN>" \
  -F "File=@/path/to/document.pdf" \
  -o output-pdfa.pdf

Choose your PDF/A version

Target the exact ISO profile your policy demands—PDF/A-1/2/3/4 including 4e/4f for engineering.

# Supported: PdfA1a, PdfA1b, PdfA2a, PdfA2b, PdfA2u,
#            PdfA3a, PdfA3b, PdfA3u, PdfA4, PdfA4e, PdfA4f
curl -X POST https://v2.convertapi.com/convert/pdf/to/pdfa \
  -H "Authorization: Bearer <API_TOKEN>" \
  -F "File=@/path/to/document.pdf" \
  -F "PdfaVersion=PdfA4e" \
  -o output-pdfa4e.pdf

Embed e-invoice XML (Factur-X)

Combine a human-readable PDF with machine-readable Factur-X 1.0 data for compliant e-invoicing.

curl -X POST https://v2.convertapi.com/convert/pdf/to/pdfa \
  -H "Authorization: Bearer <API_TOKEN>" \
  -F "File=@/path/to/document.pdf" \
  -F "InvoiceFile=@/path/to/invoice.xml" \
  -F "PdfaVersion=PdfA3b" \
  -F "InvoiceFormat=facturX" \
  -o invoice-pdfa3b-facturx.pdf

Embed e-invoice XML (ZUGFeRD 2.0)

Add ZUGFeRD 2.0 XML to PDF/A-3 for modern e-invoice exchange and long-term archiving.

curl -X POST https://v2.convertapi.com/convert/pdf/to/pdfa \
  -H "Authorization: Bearer <API_TOKEN>" \
  -F "File=@/path/to/document.pdf" \
  -F "InvoiceFile=@/path/to/invoice.xml" \
  -F "PdfaVersion=PdfA3b" \
  -F "InvoiceFormat=zugferd2" \
  -o invoice-pdfa3b-zugferd2.pdf

Batch convert invoices (Linux/macOS)

Scale to folders of invoices with a tiny shell loop—great for nightly jobs and migrations.

for pdf in /invoices/*.pdf; do
  xml="${pdf%.pdf}.xml"
  out="/converted/$(basename "${pdf%.pdf}")-pdfa3b-facturx.pdf"
  [ -f "$xml" ] || { echo "Missing XML for $pdf"; continue; }
  curl -s -X POST https://v2.convertapi.com/convert/pdf/to/pdfa \
    -H "Authorization: Bearer <API_TOKEN>" \
    -F "File=@${pdf}" \
    -F "InvoiceFile=@${xml}" \
    -F "PdfaVersion=PdfA3b" \
    -F "InvoiceFormat=facturX" \
    -o "$out"
  echo "Saved: $out"
done

Windows PowerShell (non-invoice)

Call the same endpoint from Windows environments—ideal for scheduled tasks.

$token = "<API_TOKEN>"
Invoke-WebRequest `
  -Uri "https://v2.convertapi.com/convert/pdf/to/pdfa" `
  -Method Post `
  -Headers @{ Authorization = "Bearer $token" } `
  -Form @{ 
    File = Get-Item "C:\files\document.pdf"
    PdfaVersion = "PdfA4f"
  } `
  -OutFile "C:\files\output-pdfa4f.pdf"

Windows PowerShell (PDF + XML)

Send a PDF together with an e-invoice XML.

$token = "<API_TOKEN>"
Invoke-WebRequest `
  -Uri "https://v2.convertapi.com/convert/pdf/to/pdfa" `
  -Method Post `
  -Headers @{ Authorization = "Bearer $token" } `
  -Form @{ 
    File = Get-Item "C:\files\document.pdf"
    InvoiceFile = Get-Item "C:\files\invoice.xml"
    PdfaVersion = "PdfA3b"
    InvoiceFormat = "facturX"
  } `
  -OutFile "C:\files\invoice-pdfa3b-facturx.pdf"