Конвертер AVIF в PDF

# 1) Request a presigned URL → returns { uploadUrl, storageKey }
curl -X POST 'https://api.elysiatools.com/api/upload/presign/avif-to-pdf' \
  -H 'Content-Type: application/json' \
  -d '{"filename":"imageFile.ext","contentType":"application/octet-stream","size":12345}'

# 2) PUT the file bytes directly to the presigned uploadUrl
curl -X PUT '<presigned uploadUrl>' \
  --data-binary @/path/to/file.ext

# 3) Call the tool, passing the returned storageKey for each file field
curl -X POST 'https://api.elysiatools.com/ru/api/tools/avif-to-pdf' \
  -F 'imageFile=uploads/2026/01/01/your-tool-1700000000000-abc123.ext' \
  -F 'pageSize=A4' \
  -F 'orientation=portrait' \
  -F 'quality=80' \
  -F 'backgroundColor=white' \
  -F 'margin=10' \
  -F 'title=Ввести заголовок документа...' \
  -F 'author=Ввести имя автора...' \
  -F 'subject=Ввести тему документа...' \
  -F 'keywords=Ввести ключевые слова...' \
  -F 'fitMode=contain' \
  -F 'centerImage=true' \
  -F 'preserveAspectRatio=true'