It really is very simple. PDFs are often too large to send by email or to upload on a website. Most applications make it surprisingly difficult to compress pdf files or have to download extra tools to compress their files or have to buy expensive professional software to complete the task.
The smallpdf web app lets you drag-and-drop your pdf file in a box and you just wait for the compression to complete and download your file. It's that simple.
Other online solution offer more options to compress a file while smallpdf is simpler in its design. It might not offer many settings but offers the most simple solution out there. Also, there is no file size limit and everyone can also compress really large files.
For everyone who wants to compress a pdf and does not own professional software. Every user who has experienced how difficult it can be to complete this simple task, will find smallpdf the perfect solution online.