Why is my PDF print file too big

Check the printer driver, you can try to reinstall the driver for only one of the printers then test and see how is it going.

Check your distiller and acrobat converter settings. See below

http://www.rdpslides.com/psfaq/FAQ00086.htm

I have done some testting.  If I print the pdf file from the adobe printer the file size stays the same.  If I print to the canon printer the file size is at 10mb for 32 pages which is managable, but the printer they want to use is the HP and the file size is around 44mb for 32 pages.

It sounds like there is an interpreter issue in the printer drivers.  It is possible that the PDF file is being translated to Postscript for your Adobe printer, but is being sent to the other printer drivers as graphics, not text.  In this case, the printer driver has no option but to treat the text as an image, and generate printer commands accordingly.  This would certainly cause a significant increase in the size of a spool file.  It would also explain why the spool files are different sizes for each printer.

The above possibility is interesting, but imho, since spool files are temporary in that they are deleted after the print job completes, the size of a spool file is not as important as whether the page prints correctly.  Even if 25 32-page jobs are spooled to your HP printer, that is only 25 x 44mb = 1.1 GB.  Disk is cheap.

In this case, I would add the printer as a tcp printer to the machine and try to print those pdfs and see how it is going. If it went fine so something wrong with the driver that was installed before (on a print server for example).

Check that Acrobat is not set to "Print as Image" under the Advanced button in the Print dialogue box. If it is, untick it and try again.

Thank you Wylie, I did make the switch to PS and after turing off print Optimization I was able to get the print job file size down to normal.