Optimize a PDF file

Nitro Pro includes a powerful set of tools for removing unwanted document objects and compressing images – helping you shrink files significantly.

To optimize a PDF file:

  1. Click the File menu and then click Optimize PDF
  2. Click one of the following:
    • Reduced Size: optimize the PDF file to the smallest size possible. Click Show Details to see what is being changed
    • Reduced Size and Print Ready: optimize the PDF file to the smallest size possible while retaining a good print quality. Click Show Details to see what is being changed
    • Custom: . Click Show Details to manually configure the following optimization options:
      • Resample images: select this option and then choose the required level of image compression. Refer to Image optimization settings for more information on the Custom compression settings
      • Interactive Content: remove interactive content that is not required by the audience of the document
      • Document Content: select additional content that can be removed to further reduce the size of the PDF file
        • Remove Bookmarks: bookmarks are convenient but not essential to viewing the PDF file
        • Remove File Attachments: attachments can increase the file size considerably. Removing them will not impact the content on the document’s pages
        • Remove Embedded Thumbnail Images: thumbnail images are used by the Pages pane to distinguish one page from another. Storing them in the document enables faster navigation, but they can still be rendered in real-time if removed
        • Remove Named Destinations: named destinations are links that point to a location in the document for easier navigation. Some documents might not require named destinations to be viewed correctly
        • Remove Unused Objects: JavaScript or annotation objects that aren’t in use can be deleted from the document
        • Remove only invalid or unused links…: select additional content that can be removed to further reduce the size of the PDF file
  3. Click Optimize to continue, or Cancel to interrupt optimization