Reduce PDF file size with advanced options

Последна актуализация на 5.11.2025 г.

Learn to compress PDF files in Adobe Acrobat for easy sharing and storage.

Windows

Select Menu > Save as Other > Optimized PDF.

In the dialog box that opens, select Standard from the Settings dropdown menu.

To customize the file size and quality, adjust settings in the following panels as needed:

  • Images: Reduce file size by downsampling and compressing images.
  • Fonts: Reduce file size by unembedding or subsetting the fonts.
  • Transparency: Reduce file size by lowering the quality of transparent objects and flattening transparency effects.
  • Discard Objects: Remove elements like embedded thumbnails, search indexes, and flatten form fields to reduce file size.
  • Discard User Data: Remove comments, forms, multimedia, and private data to decrease file size.
  • Clean Up: Remove invalid elements such as bookmarks or links and preparing PDF for fast web view.

In the Make compatible with dropdown menu, select the desired compatibility for Acrobat versions.

Бележка:

Selecting an older version of Acrobat may limit compression features.

Select OK.

Choose a location to save the compressed PDF, enter a filename, and then select Save.

macOS

Select File > Save as Other > Optimized PDF.

In the dialog box that opens, select Standard from the Settings dropdown menu.

To customize the file size and quality, adjust settings in the following panels as needed:

  • Images: Reduce file size by downsampling and compressing images.
  • Fonts: Reduce file size by unembedding or subsetting the fonts.
  • Transparency: Reduce file size by lowering the quality of transparent objects and flattening transparency effects.
  • Discard Objects: Remove elements like embedded thumbnails, search indexes, and flatten form fields to reduce file size.
  • Discard User Data: Remove comments, forms, multimedia, and private data to decrease file size.
  • Clean Up: Remove invalid elements such as bookmarks or links and preparing PDF for fast web view.

In the Make compatible with dropdown menu, select the desired compatibility for Acrobat versions.

Бележка:

Selecting an older version of Acrobat may limit compression features.

Select OK.

Choose a location to save the compressed PDF, enter a filename, and then select Save.