Changing PDF File Size Using a Command Line Software
To change file size of PDF files you have to reduce the file size by compressing it. A good way to change file size of PDF is by using command line softwares offered by some manufacturers. Using these softwares is the simplest solution to any file compression need because these are standalone softwares that do not depend on print drivers for the compression process. No external components, plug-ins or programs are needed. These softwares only use function calls to change your PDF file size. This is the most simple and hassle-free method. If you want to change the file size of multiple PDF files, you can batch compress them with these command line softwares.
Changing PDF File Size Using a Compression Tool
Open the compression tool interface. Go to File > Open File(s). With this command you can open even more than one file. Select your files to open in the window that pops up. Press Open. The files will be listed in the interface. The table in the interface will also show the status of the compression process. Select a location to save the files in. Check the boxes beside the file names that you want to compress in a batch. Leave those files unselected that you want to compress and store into some other folder. Press Compress The status column will show the status of the process; pending, compressing or complete. How long the compression will take depends on the number of files included in the batch.
Changing File Size Online
Another way to change file size is by compressing in any PDF compressing website. Most of these websites offer free services. You may at most have to sign up and provide your email address to them. In some of these websites you have the option to set your own compression parameters. You can either upload file(s) or you can provide the URL of the image that you want compressed before you download it. The process does not take long. You can download the compressed files from a site that you can go to by clicking a link they will provide you.