How to Use Adobe Acrobat's Reduced Size PDF Command
Question details
The user wants to know how to compress a PDF document using the automated Reduced Size PDF command in Adobe Acrobat.

- Product
- Adobe Acrobat
- Device & OS
- not provided
- Scenario
- Compressing a large PDF file to reduce its storage size for easier sharing or emailing, without manually adjusting detailed image and font settings.
- Observed behavior
- The user seeks a quick, automated way to shrink the size of a PDF document as an alternative to using the detailed PDF Optimizer tool.
Before reducing your PDF file size, save a duplicate copy of the original high-resolution document in case the automated compression degrades image quality more than desired.
Use the Reduced Size PDF Feature in Acrobat
This method applies automated compression to shrink your PDF quickly without the need to configure advanced settings manually.
The Reduced Size PDF command is the fastest way to shrink a document in Acrobat. It automatically adjusts images and compresses document structure based on the compatibility version you select.
Launch Adobe Acrobat and open the PDF document you want to compress. Click on 'File' in the top-left corner of the application.
In the File menu dropdown, hover your cursor over the 'Save As Other' option to reveal additional saving and formatting options.
From the sub-menu, click on 'Reduced Size PDF'. A new dialog box will appear prompting you to choose compatibility settings.
Select the required Acrobat compatibility version from the drop-down menu (choosing a more recent version generally results in a smaller file size). Click 'OK' to save your newly compressed PDF.

Compress PDFs Easily with WPS Office
If you find Adobe Acrobat too heavy or expensive, WPS Office offers a built-in PDF compressor that quickly reduces file sizes while maintaining excellent document quality, making file sharing effortless.
- 1. Open your PDF in WPS Office: Launch WPS Office and open the PDF file you wish to compress.
- 2. Access the PDF Compressor: Navigate to the 'Tools' tab on the top ribbon and click on the 'Compress' or 'PDF Compressor' button.
- 3. Select Compression Level: Choose your desired level of compression (e.g., High, Normal, or Low) depending on your file size and quality requirements.
- 4. Compress and Save: Click 'Compress' to start the process. Once finished, save the optimized PDF to your desired folder.

Frequently Asked Questions
What is the difference between Reduced Size PDF and Optimized PDF?
Reduced Size PDF applies a standard set of automatic compression algorithms to quickly shrink the file. Optimized PDF allows you to manually adjust granular settings, such as color and grayscale image downsampling, font un-embedding, and discarding specific document objects.
Will reducing the PDF size affect the image quality?
Yes, standard compression works primarily by lowering the resolution of images within the document. While text remains sharp, photographs and detailed graphics may become noticeably blurrier.
Can I reduce the size of multiple PDFs at the same time?
Yes, if you are using Adobe Acrobat Pro, you can apply the Reduced Size PDF command to multiple files simultaneously by using the Action Wizard feature to batch process the documents.




