What is a PDF?
Portable Document File or PDF is an universally accepted file format for reliable and secure document exchange. PDF is specifically designed to contain all the file contents (both text and images) and retain the format intact upon conversion for long term. Most of the electronic documents are converted to PDF for ease of use, data retention and data security.
Why Do We Need to Compress PDF?
Large sized PDFs are difficult to transmit or download. Usually, PDF documents are loaded with graphics, tables or charts which increase their size to a very great extent. While attaching PDF documents to emails, it takes long time if the file size is very huge and the network bandwidth gets clogged. Therefore, PDF compression is to be done to make the PDF smaller for easy transmission. This helps in efficient data handling and easier data storage and retrieval. Time and cost involved in the data transmission are saved to a large extent.
How Can PDF Be Compressed?
PDF compression can be done by employing one of the two compression techniques, Lossy or Lossless methods. Both methods are used to reduce the PDF size to required level. Using lossy compression PDF is compressed but the lost data cannot be recovered completely. Lossless compression will not harm the quality of the images but the compression of the file will be less effective than the lossy compression. PDF compression will reduce the image sizes, remove unused elements and optimize the file for fast web viewing. Large sized PDF documents can also be compressed by using the simple Reduce File Size Command. Select the "Document > Reduce File Size" in the software menu bar. This command is the same for many versions of PDF authoring software. PDF compression software tool has to be installed and the output PDF is compressed in size and good quality.