Use the full version of Adobe Acrobat software (i.e. Adobe Acrobat X Pro), rather than Adobe Acrobat reader. The full version allows you to edit and save changes to the file.
Use “Save As” instead of “Save.” When you use “Save As,” the file is overwritten. Using “Save” appends all the changes to the file information, so it increases file time each time you press the button.
When using “Save As”, select the “Optimized PDF” option. This will also enable you to use the “Audit Space Usage” function to identify the various elements in the document and the corresponding storage size.
Make the document compatible with the latest version of Acrobat. Web browsers automatically load the latest version of Adobe Reader, and setting compatibility to later versions of Acrobat will allow greater reduction in file size.
In Adobe Acrobat X, check the File menu for file size-reducing options, such as ‘Prepare for Web Publishing’, etc.
Double check font types. Some PDFs, especially if converted from another file type such as Microsoft Word or Excel or if merged from multiple separate PDF documents, contain multiple copies of the same font and same font style. Removing the font duplicates may reduce the file size.
Remove “Named Destination” links. Named destinations are places within the Adobe Acrobat file that link to other documents; they use 1 KB per link.