PostingAPI_PostingFBSGetDigitalAct

по https://docs.ozon.ru/api/seller/#operation/PostingAPI_PostingFBSGetDigitalAct

ожидаю

{
  "content_type": "application/pdf",
  "file_name": "20816409_act_of_mismatch.pdf",
  "file_content": "%PDF-1.4\n%ÓôÌá\n1 0 obj\n<<\n/Creator(Chromium)\n/Producer(PDFsharp 1.50.5147 \\([www.pdfsharp.com|http://www.pdfsharp.com/]\\) \\(Original: Skia/PDF m103\\))\n/CreationDate(D:20230625092529+00'00')\n/ModDate(D:20230625092529+00'00')\n>>\nendobj\n2 0 obj\n<<\n/Type/Page\n/Resources\n<<\n/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]\n/ExtGState\n<<\n/G3 3 0 R\n/G8 8 0 R\n>>\n/XObject\n<<\n/X6 6 0 R\n/X7 7 0 R\n>>\n/Font\n<<\n/F4 4 0 R\n/F5 5 0 R\n>>\n>>\n/MediaBox[0 0 594.96 841.92]\n/Contents 9 0 R\n/StructParents 0\n/Parent 13 0 R\n/Group\n<<\n/CS/DeviceRGB\n/S/Transparency\n>>\n>>\nendobj\n3 0 obj\n<<\n/ca 1\n/BM/Normal\n>>\nendobj\n4 0 obj\n<<\n/Type/Font\n/Subtype/Type0\n/BaseFont/AAAAAA+LiberationSans\n/Encoding/Identity-H\n/DescendantFonts[160 0 R]\n/ToUnicode 161 0 R\n>>\nendobj\n5 0 obj\n<<\n/Type/Font\n/Subtype/Type0\n/BaseFont/BAAAAA+LiberationSans-Bold\n/Encoding/Identity-H\n/DescendantFonts[164 0"
}

однако получаю 
%PDF-1.4\n%ÓôÌá\n1 0 obj\n<<\n/Creator(Chromi..............

чего ожидать? так все и останеться?