File Compressor

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Reduce PDF file sizes quickly and efficiently. Fast, secure backend processing, completely free.

Drop PDF file here or click to upload

Supports PDF files only

About File Compressor

File Compressor is a powerful online tool that reduces the file size of your PDF documents without significantly affecting quality. Whether you need to compress files for email attachments, website uploads, or storage optimization, our tool delivers fast results.

Using advanced compression algorithms on our secure backend, your PDFs are optimized instantly and delivered directly to your browser. Files are processed immediately and never stored permanently, ensuring your documents remain private and secure.

250K+
Files Compressed
<5s
Avg Process Time
40-80%
Size Reduction
100%
Secure Transfer

Key Features of File Compressor

Everything you need for professional file compressor

Easy Upload

Simple drag and drop or click to select your PDF file. Fast and intuitive file selection process.

Powerful Compression

Advanced backend processing using pypdf library for optimal PDF compression and file size reduction.

Fast Processing

Quick compression powered by our backend server. Most PDFs are compressed within seconds.

Secure Processing

Files are transmitted securely over HTTPS and processed immediately. No permanent storage on our servers.

Instant Download

Compressed PDFs are automatically downloaded to your device. No waiting, just instant file delivery.

Free to Use

Completely free PDF compression service with no registration required. Compress as many files as you need.

How to Use File Compressor

Follow these simple steps to get started

01

Upload PDF

Click or drag your PDF file to the upload area.

02

Compress

Click the Compress button and wait for processing.

03

Download

Your compressed PDF will be automatically downloaded.

Pro Tips

  • PDFs with images compress better than text-only documents.
  • Files that were previously optimized may show smaller compression gains.
  • Compression preserves all text, images, and formatting.
  • For best results, upload PDFs that haven't been compressed before.

Frequently Asked Questions

Everything you need to know about File Compressor

What is a File Compressor?

A File Compressor is a free online tool that reduces the file size of PDFs without significantly affecting quality. It helps you save storage space, reduce upload/download times, and makes sharing files easier.

What file formats are supported?

Currently we support PDF documents. Upload your PDF and our backend will optimize and compress it using advanced algorithms.

How much compression can I expect?

Compression rates vary by file content. PDFs can typically be reduced by 5-50% depending on the original content and whether they've been previously optimized.

Will compressing reduce quality?

Our compression maintains visual quality while reducing file size. Text and vector graphics remain sharp, and images are optimized with minimal quality loss.

Is there a file size limit?

File size limits depend on your plan. Free users can compress files up to 5 MB, while premium plans offer larger limits up to 100 MB.

Are my files stored on your servers?

No! Files are processed immediately and never stored permanently. Your compressed PDF is delivered directly to your browser for download.

How do I download compressed files?

After compression completes, your compressed PDF is automatically downloaded to your device. Files are named with a 'compressed_' prefix.

Can I use this for commercial projects?

Yes! Our File Compressor is completely free for both personal and commercial use. Compress as many files as you need for your business, website, or personal projects.

Still need help?

Can't find what you're looking for? Our support team is here to assist you.

Contact Support