Compress Pdf Online already compresses the PDF files. So, there is not much you can do. What you can do is minimize the size of images in your document.
If you have a PDF viewer application installed (like Firefox and Google Chrome), then you can click on the PDF on your screen right away, and it will open it as a PDF file. Another way is to download one of our FREE online PDF file converter that is capable of converting a PDF file (.pdf, .doc…etc) to many other file types such as DOCX, DOC, HTML, and XLS, and PDF (to XLS and DOC to PDF conversions in the future). There's no need to worry that you won't be able to access the PDF that you want to look at. We can convert a PDF to other file formats, then open them and save them to a folder in your PC or laptop.