while i am creating some drawing files (which include so many images) into pdf file, it is taking a lot of time and atlast the system will get hang.how it happened. did anybody is having any answer ? is it the problem of system(ram is 1GB) or Acad. i am using ACAD 2005.There is any other software to make pdf files other than Adobe pdf professional.i am attaching the files.please let me know