Why Compress a PDF File
It is very important that a pdf file is compressed if it is too large. Compression is an expression that stands for something that requires to be reduced to a minimal size, thus saving storing space. Documents, which are scanned, are saved in PDF format. However, these files tend to become huge taking up much space and time of the users to handle them. So, that is where the need to compress a PDF file comes in. Moreover, PDFs often become too large, thereby making it impossible to send the same via e-mail attachments due to space limitations on the file size that you can attach. Apart from this, if web developers do not optimize the PDF file for the web, then the site visitors may find it difficult to access the document quickly. Compressing your PDF files may help in such cases. There are only two ways to compress a PDF file. One is lossy and the other lossless. Both these form of compression use different algorithms to reduce the file. However, lossy compression results in data loss while lossless compression is just the opposite.
Ways to Compress a PDF File
As mentioned above, there are algorithms that are used to reduce PDF files. Some are JPEG, JPEG2000, JBIG2, MRC or layered compression and the like. JPEG mode is widely used by scan software to produce PDF file. JPEG compression was developed to view still images. However, when files are compressed highly, then JPEG compression cannot maintain the quality of the images. To overcome this problem, JPEG2000 came into action giving better compression than JPEG. JBIG2 is a very good compression method for black and white text while MRC or layered compression is the best of all as it combines all forms of compression and gives a compression ratio of almost 300:1. Hence, you can use any of these ways to compress a PDF file.
Finding Software for Compressing a PDF File
You may take your search online to find software for compressing the PDF files. It would be a good idea to try some freeware or trial versions to get a hang of things and then move on to the paid versions, provided the test run satisfies you.