Follow these practical steps to easily reduce a PDF file size with Adobe Acrobat Pro:
1. Open the PDF file in Adobe Pro
2. Click on Advanced in the top menu
3. Select PDF Optimizer
4. Set all the DPI fields to 100dpi as shown below
5. You can also select additional options under ‘Discard User Data’ to safely reduce the file size
6. Click OK
7. Save the file under a new file name when prompted
This method will safely reduce a PDF file size without noticeably reducing the quality. One can reduce the file size further by lowering quality settings or further reducing the DPI but a drop in quality will be noticed
