Compress a PDF
It is very common for a user to fit in all the data into a PDF file and make it really large. It is comfortable to the user but the trouble begins when you want to send this document via email. You will get frustrated as e-mail settings do not support the transfer of images and files of more than 10 MB size and now you have the option of either compressing the PDF or breaking it into smaller files so that you can send them across with out any hassles. Instead of breaking down the PDF document into smaller files, it is a better option to compress the PDF. You can reduce the size of the document in order to save a little space and transmission time over the net too. You can perform the compression on the document or on the entire transmission unit depending upon your requirements.
The Right Way to Compress a PDF
You can compress the PDF by removing the extra spaces, introducing a single character to specify a string of repeated characters and you can also replace smaller strings for characters that occur repeatedly. You can compress the PDF document to at least 50 % of its original size using the required software. There are several varieties of software available in the market today and you can browse the internet to get the reviews of the best software available. Compression programs use software algorithms to perform the compression and it is this algorithm that plays a vital role in determining the compression. The compression is done in the lossy method wherein some information is lost permanently or by the lossless method whereby the information can be restored later on.
Tips and Tricks
Generally the PDF uses the algorithms such as FLATE, ZIP, RLE and JPEG and JPEG2000 for compressing. The compression algorithms produce binary data which can be converted into ASCII later on if need arises. FLATE, ZIP and RLE are lossless algorithms which do not change the contents of the file while JPEG compression is a lossy technique which achieves better compression but some data could be lost in this process. You can use any of the 2 techniques mentioned above depending upon your document and how much you want to compress it.