Objects missing endobj keyword in a PDF 1.4 file

Hi all

I have a pdf file of 1.4 version and it has some objects which miss the endobj keyword at the end of object definition i.e.

15 0 obj

<< /Type /Font

   /Subtype /Type1

   /Name /f-0-0

   /BaseFont /Arial

   /Encoding /WinAnsiEncoding

>>

17 0 obj

<< /Type /Font

   /Subtype /Type1

   /Name /f-1-0

   /BaseFont /Arial

   /Encoding /WinAnsiEncoding

>>

15 0 obj

<< /Type /Font

   /Subtype /Type1

   /Name /f-2-0

   /BaseFont /Arial

   /Encoding /WinAnsiEncoding

>>

26 0 obj

<< /Type /Font

   /Subtype /Type1

   /Name /f-3-0

   /BaseFont /Arial

   /Encoding /WinAnsiEncoding

>>

stream

stream data

endstream

endobj

Please tell me what is the reason of missing endobj entry in these objects defintions above.

Thanks in advance.

Regards,

Ali