PDFs are all about making documents easily shareable and portable, but sometimes, it becomes a challenge to share a PDF because of the size. PDFs are not always tiny in size because when you're working in a corporate sector, you may have to handle a huge number of multi-megabyte PDFs. In that case, the portability of PDFs becomes a challenge, but no more. Many PDF file compressors online have solved the problem by compressing the file size. These online PDF compressors shrink PDF files and make them easier to share online. PDF Genius is one excellent PDF compressor to reduce file size and make files shareable.