Watermark PDF API

Stamp every copy of a PDF with who it belongs to. One API call, any language.

curl https://api.watermarkpdfapi.com/v1/watermark \
  -H "Authorization: Bearer $WPA_API_KEY" \
  -F file=@ebook.pdf \
  -F text="Licensed to {{email}} · {{date}}" \
  -F variables='{"email":"jane@example.com"}' \
  -o ebook-jane.pdf

Launching soon.