Life Hacker: “Have you ever noticed how strict websites are about PDF sizes? Whether it’s uploading a resume, submitting a school project, or sending an important file to a colleague, most of us have probably found ourselves needing to compress a PDF to meet a website’s clandestine PDF size restrictions. While Adobe Acrobat DC is the best way to compress PDF files, the compression feature is only available in the paid version of the software. There is a seven-day free trial available if you haven’t used the app before, but you’ll have to pay once your free week is over. Luckily, there are several free ways to squeeze a PDF down to a more manageable size on PC and Mac in no time…”