Compress PDF files with ease using Soda PDF's FREE online tool. Reduce the size of your PDF file without affecting the quality of your document. No file size limits, no ad watermarks - just a free, beautiful and simple online pdf compressor to reduce the size of your PDFs and maintain good quality. Using this free online PDF compressor, you can make sure that both uploading or sending large PDF files is possible. Reduce the file size of your PDF.