Last updated on 2026-03-31

How to Compress PDF

Ever tried emailing a large PDF and hit the dreaded "file too big" alert? Frustrating, right? Don’t worry—PDNob PDF Editor can shrink your PDF quickly and easily without compromising quality. Follow these steps to compress your PDF effortlessly:

  • Open Your PDF in PDNob

    Launch PDNob PDF Editor and open the PDF you want to compress. On the top toolbar, click Tools and then select Compress.

    compress pdf
  • Choose the Compression Option

    From the dropdown menu, pick Compressed PDF. A new window will open, presenting several compression levels for you to select.

  • Select Your Desired Compression Level

    You’ll have choices like: High quality, Medium quality, and Low quality.

    compress pdf box

    Lower quality settings reduce file size more significantly, but may take a few extra seconds to process. Choose the balance that works best for you.

  • Save Your Compressed PDF

    After selecting the compression level, click the Compress button. Pick a location, name your file, and press Compress again. Your PDF is now reduced in size and ready to share.