Large PDF files can make sharing or displaying PDFs difficult. While you can buy different types of software to reduce the size of large PDF files, you need not do so. You can reduce large PDF files by using the Adobe Reader feature that comes standard on most computers. Even if Adobe PDF Reader is not pre-installed, you can download the program for free. If you already own Adobe Acrobat Pro, you can use a specific function to shrink the size of a PDF.
