Reduce PDF to 4MB
Need your PDF under 4MB? Use our free PDF compressor to shrink any PDF file to 4 megabytes or less. Choose from three compression levels to balance quality and file size. Perfect for email attachments, form submissions, and online uploads.
Ready to get started?
Need your PDF under 4MB? Use our free PDF compressor to shrink any PDF file to 4 megabytes or less.
Compress PDF NowHow It Works
- Click the button above to open the PDF Compressor.
- Upload your PDF file (up to 100MB supported).
- Select a compression level: try "High" for maximum reduction.
- Click "Compress PDF" and wait for processing.
- Download the compressed PDF. If it's still above 4MB, try a higher compression level.
Frequently Asked Questions
How do I reduce a PDF to under 4MB?
Upload your PDF to our compressor and select the appropriate compression level. For reaching 4MB, use "High" compression which can reduce file size by 70-80%.
Will reducing to 4MB affect document quality?
The compressor offers three levels. Low compression preserves nearly identical quality with 10-20% reduction. Medium is recommended for most uses with 40-60% reduction. High achieves maximum compression with minor visual changes to embedded images.
What if my PDF is already under 4MB?
If your PDF is already under 4MB, you can still compress it further or simply use it as-is. The tool will show you the original and compressed sizes for comparison.
Is the PDF compression secure?
Yes. Your files are processed securely and never stored permanently on any server. Privacy and security are top priorities.
Can I compress a scanned PDF to 4MB?
Scanned PDFs contain images, so they typically see the largest compression gains. Our tool is particularly effective at reducing scanned document sizes to 4MB and below.