Sign in to Acrobat Web (Document Cloud Home) at https://documentcloud.adobe.com with your Adobe ID and password, or with your social (Facebook or Google) account.
Use the Compress PDF service to reduce the size of your PDF file. The size of the file is optimized by removing embedded fonts, compressing images, and removing items from the file that are no longer needed.
Steps to compress PDF:
In the top navigation bar, click Convert > Compress PDF.
Do one of the following to select the PDF file that you want to compress, and then click Continue:
To select additional PDF files to compress, click Add Files. Select the desired files from the Recent or Files list, or from your computer, and then click Continue.
The selected PDF file is compressed. A suffix _compressed is added to the compressed filename and stored in your Adobe Document Cloud account. Click the Download icon to save the file on your computer or device.
The Recent section at the bottom area of the home page lists all the files you’ve compressed recently. Alternatively, to see the list of all your files, click Documents in the top-menu bar.