How to reduce PDF file size using Software: 50 MB to 1 MB

Many office Clerks and IT teachers in School Education Department face situation when file size exceeds from 25 MBs and they are not able to send through GMAIL as max file limits is 25 MB.
similarly recently AIOU introduced LMS for students , where they have to upload their assignments in the form of PDF files. At AIOU LMS maximum file size is just 5MB. and many students are unable to reduce their scanned PDF file size.
in this video i am introducing you world best software for Optimization ( compression) of documents and picture files. now you can reduce document file size upto 50 times i.e A 50MB file can be reduced to upto 1MB. Yesss
so Must like & comment and share this video.
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to download NXPowerlite
http://www.rarefile.net/xebv8pliyo84/Neuxpower.NXPowerLite.Desktop.Edition.8.0.4.rar