Smallpdf's PDF Compressor reduces the size of your PDFs quickly and for free.
On the page you can easily upload your files by drag-and-drop or traditional upload and let the tool do the rest.
Your document is compressed to an optimal size with a DPI quality of 144dpi and with decent JPG compression. So, your file size is reduced while the quality difference is hardly recognizable.
The app does not use ad watermarks on you documents, has no upload limits and is entirely free. The files you upload and generate on the site are deleted permanently from the server within one hour after the upload.
If you enjoy using the app, please give us a review here on the Chrome Store. :)