PDF is a very popular file format for viewing documents. It has the advantages over JPEG and TIFF files etc in that it can be viewed universally by anyone, as it is free of cost. Adobe systems came up with the Portable Document Format or PDF as a method to exchange documents consisting of both text and images. The text could include numbers, alphabets and other characters. The images could be vector or raster. PDF can also be made searchable.
Despite all the positives, PDF has one minor disadvantage. The PDF files are usually very large and occupy a lot of space. PDF compression, therefore, becomes essential. All the text material and the graphics can be compressed using PDF compression and thus the size of the file gets reduced. The PDF files usually save backups, which can be removed to further reduce the size.
PDF compression has a lot of uses. It saves space of the computers memory, so more files can get stored. Sending PDF files across as email becomes easier with PDF compression. The PDF files get displayed faster on the websites and the downloading and uploading time gets reduced substantially.
If you want PDF compression for files in which the colors of the images are not important, convert the files to monochrome or grayscale, this will reduce the size of the file to a large extent. Some files have unnecessary links, references\ etc that could be eliminated for better PDF compression.
However, there are certain things you need to bear in mind if you opt for PDF compression. You should know to what extent you could compress the file. If you compress the files too much, their quality drops and the readability decreases. Keep in mind the version of the PDF for PDF compression. The higher the version of the PDF file to be compressed, the higher will be the compression. Make special note of how the file is embedded as this can have an impact on the size. PDF compression could reduce the font size of the file too, so pay special attention to this.
PDF compression has become easier now with many softwares available in the market. But keep the quality in mind before choosing one.