Compress PDF Files

Reduce PDF file size up to 70% while maintaining quality. 100% Free - No registration required!

1M+ Files Compressed 100% Free No Sign-up

Compress PDF File

Upload your PDF and choose compression level to reduce file size significantly. Perfect for email attachments and sharing.

Drag & Drop PDF Here

or click to select file

Maximum file size: 50MB | Supports PDF files only
Low ~20-30% reduction High ~40-50% reduction Extreme ~60-70% reduction

Why Use Our PDF Compressor?

Fast Compression
Compress PDFs in seconds
3 Levels
Choose compression strength
100% Secure
Files stay in your browser
Works Anywhere
Mobile & desktop friendly

How to Compress PDF Files

 1 
Upload PDF
Select your PDF file
 2 
Choose Level
Select compression strength
 3 
Compress
Click to reduce file size
 4 
Download
Get your compressed PDF

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Frequently Asked Questions

What is PDF compression?

PDF compression is the process of reducing the file size of a PDF document while maintaining acceptable quality. Our tool optimizes images, fonts, and content to significantly reduce file size without making the document unusable.

Is this tool completely free?

Yes, this PDF compressor is 100% free to use. No registration, no watermarks, and no hidden fees. You can compress as many PDFs as you want without any limitations.

What is the maximum file size?

Our tool supports PDF files up to 50MB. For larger files, we recommend splitting the PDF into smaller parts before compressing.

Is my data safe and private?

Yes, your privacy is important to us. All PDF files are processed in your browser using PDF-lib library. Files are not uploaded to any server, ensuring complete privacy and security.

What compression levels are available?

We offer three compression levels: Low (20-30% reduction, best quality), High (40-50% reduction, good balance), and Extreme (60-70% reduction, maximum size reduction). Choose based on your quality requirements.

Does compression affect PDF quality?

Compression does affect quality to some degree. Low compression maintains near-original quality. High compression reduces quality slightly but is usually acceptable. Extreme compression may show noticeable quality loss but achieves the smallest file size.

Does this work on mobile devices?

Yes, our PDF compressor is fully responsive and works on all devices including smartphones, tablets, and desktops. You can compress PDFs on the go using your mobile browser.

What are common uses for PDF compression?

Common uses include reducing file size for email attachments, optimizing PDFs for web upload, saving storage space, faster file sharing, reducing upload/download times, and meeting file size limits on various platforms.