Scanned PDFs, especially those with a large number of pages and a high DPI resolution, are usually too heavy to be shared comfortably and – for computers with low memory resources – may even turn to be hard to open and browse. PDF Compressor is capable of reducing the size of a big PDF file up to 23% without a noticeable loss of quality, allowing you to distribute your scanned PDFs as email attachments in a more convenient way.
PDF Compressor is actually an image compressor capable of extracting the images (i.e., pages) of a scanned PDF, compress them to the desired DPI, and pack them back again as a PDF file. The lower the resolution you are prepared to accept, the smaller the final size of the resulting file. Thus, finding that right combination between size and quality is key to produce a good-quality PDF file that doesn’t weigh too much. To achieve that, it is crucial to know for sure the resolution of the images used to produce the source PDF, so that you can lower it down instead of increasing it inadvertently. Actually, if the DPI selected for the compressed file happens to be higher than the resolution of the original PDF, you will be surprised to see that the “compressed” file is even bigger, much bigger, than the source file. The same principle applies to text-based PDFs – by compressing them using this tool as if they were scanned PDFs, you’ll be converting text pages into images, which will result in a set of unexpectedly huge “compressed” PDF files. more
Comments