How To Compress PDF Files In Size?

Put the back in Portable Document Format. Clean up scans and imports. Reduce file size and go further with your PDFs.

PDF file too large? Click to start compressing PDF.

PDF File Too Large? Try This Free PDF Compression Tool

PDFs are convenient, but large files filled with images and graphics can be hard to upload, share, or store. KDAN PDF Reader’s compression feature helps solve this problem effectively.
It offers professional compression with adjustable levels while preserving image quality and layout. Compared to typical online tools, it offers:
- Multiple compression levels for precise file size control
- High quality after compression, with no impact on resolution or layoutIntuitive
- Interface that's beginner-friendly
- Multi-platform support for access anytime, anywhere
KDAN PDF Reader is more than just a compressor—it's a full-featured PDF solution ideal for students, professionals, designers, and businesses. Its stability, convenience, and cross-platform support make daily document work easier and more efficient.

Mac

Windows

How to Compress a PDF on Mac

PDF Reader Mac enables you to reduce file size while optimizing for maximal PDF quality.
1. Download PDF Reader Mac version and launch the app
2. Open the PDF you want to reduce the file size and click More from the top menu bar to reveal more tools.

4. In the dialog box, choose a compression method that works best for you. (The DPI means the quality of how the PDF documents can be printed and displayed. Setting a lower DPI for the compression will reduce the file size)