Why Compress PDF Files?
PDF has been one of the most widely used file formats. Be it scanned documents, e-books or research papers almost everything is available in PDF format. PDF software being free, these files can be opened from any PC. This has made file sharing much easier. But at times, the size of these files is large and hence uploading and downloading these files becomes difficult. With PDF compression utility, larger PDF files are reduced to a much smaller size thereby making them easier to share. PDF compression utility also enables sending PDF files by email since the size is considerably reduced.
Algorithms in PDF Compression Utility
A PDF file generally contains images, high resolution graphics and many such things which increase the file size. PDF compression utility compresses such graphics, images, thumbnails, java scripts, comments, and other multimedia, thereby reducing the file size. There are various compression algorithms used for compressing PDF files, namely JPEG, Flate, LZW, JPEG2000, and ZBIG2. The compression algorithms used in PDF compression utility can be broadly classified as lossless and lossy compression. PDF compression utility that uses lossless compression algorithms compresses the PDF files with no loss of data or fidelity. On the other hand lossy compression algorithms reduce the file size with some loss of fidelity and hence there is more compression when using lossy compression algorithm. Some PDF compression utility software makes use of both lossy and lossless compression algorithms and lets the user customize the compression.
How to Use PDF Compression Utility
The PDF compression utility is easy to use. All that is required is selecting the file that is to be compressed and the compression begins. PDF compression utility also allows choosing the rate of compression and the compression algorithm like lossy or lossless. With a good PDF compression utility, you can compress the size of PDF files as per your requirements.