There are online PDF Conversion or manipulating utility that wont take in PDF say more than 2Mb or 6Mb. In that case, you need a PDF compression utility to reduce your PDF size up to 68%. SmallPDF is one such utility that lets you drag and drop a PDF and works on compressing it. I had a 17.83Mb file that is compressed to 5.53Mb giving me a 68.9% compression. I did this by compressing the output again and again till it can’t be compressed anymore.
In case of a zip compression you can have 90-95% compression. Given that it is a PDF, 69% is not bad at all.
Take a look at this calculator below to see how much of your file size can be compressed to.
Your PDF will be converted to the size