PDF documents generally are small in size but there are many places in it which still has opportunity for reduction and when you get to know that, you would find that there are many ways to reduce Image size in a PDF file.
PDF which basically stands for Portable Document Format started by Adobe systems in the year of 1993 was a good way of exchanging documents. It is based on open standard. In PDF documents, when images are used, they take up the most space, with more opportunity for reducing them. Whenever you have to reduce Image PDF in a PDF file, you need to know the size occupied by them.
There are some other features about images that one should be aware of before reducing them. The user should know the image resolution in order to reduce Image PDF. Along with the image type should also be known like whether GIF image is present or bitmapped image is present. The most impressible image type is vector based image type because it scales properly and the formulas used for this type of image uses less space compared to other forms. Moreover the biggest advantage about this is that it does not reduce the quality of the image.
Whenever we have to reduce PDF images, we should keep in mind that colors used for the images also take up a lot of space. So whenever colors are not required in a documents image, then grayscale option provided by Adobe systems can be used. This reduces the size by a great amount.
PDF images are always good but when they have to be sent through web, they take a lot of time for sending, downloading or uploading. So if we keep an eye on the latest techniques available in the market, we can easily reduce the size of PDF images with very less effort. There are some techniques like image shrinker that shrinks the size of the image making them highly compatible. A technique like Image splitter can be used which takes care of splitting the images so that the size is reduced.
With many versions of PDF documents available in the market today, their reduction techniques are also not less. So whenever possible reduction of PDF images should be done.