pdf file limits

Hello all,
     I just recently discovered that our phone can display .pdf files with pictures (I heard it could only do pure text previously).  I have 2 questions about this.  First, one of my files will not open because the file is too large according to the phone.  Does anybody know what the file size limit is for .pdf's on the Impression?  Second, does anyone know of a way (preferably free) to split .pdf's into several smaller files?

Thanks,
Jason

Try pdf split and merge. http://www.pdfsam.org/ That should work.