[pdftex] (no subject)

[=?gb2312?B?s8Ig1q6z9Q==?=]

How can I do this:

I want to generate a book which has 300 pages, but it is too big. Suppose 
that there are 5 chapters in the book, page 1 to 50 is chapter 1, page 51 
to 100 is chapter 2, page 101 to 210 is chapter 3, page 211 to 356 is 
chapter 4 and page 357 to 300 is chapter 5. Can I use some packages to 
pdfLaTeX my tex file into 5 pdf files, the pdf files' names are xxx001.pdf, 
xxx051.pdf, xxx101.pdf, xxx211.pdf and xxx357.pdf.