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© Image Resizer

Image-Resizer.net is a privacy-first image resizing, compression, and optimization platform that works entirely in your browser. No uploads, no tracking—just professional-grade image tools that respect your privacy and deliver instant results.

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Compress PDF Online

Reduce the size of your PDF documents while maintaining the best possible quality.

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Rated by 50,000+ users
5M+ Images Processed100+ Countries100% Browser-Based
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Powerful Features

Smart Reduction

Intelligently scans your PDF to reduce images and remove redundant data while keeping it readable.

Batch Processing

Compress multiple PDF files at once to save time.

Client-Side Secure

Your sensitive documents are processed locally in your browser and never uploaded to any server.

Quality Control

Choose between Low, Medium and High compression levels depending on your use case.

How it works

3 steps
01

1. Upload PDFs

Drag and drop one or more PDF files into the compression tool.
02

2. Choose Level

Select “Medium” for the best balance or “High” for maximum size reduction.
03

3. Compress & Download

Click “Compress All” to optimize your files and download them instantly.
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The Safest PDF Compressor

Total Privacy

Unlike server-based tools, we never upload your confidential contracts, reports or IDs.

Adjustable Quality

You decide how aggressive the compression is so you can keep text sharp or push for smaller size.

Works Offline

Once loaded, the compressor can work without an active internet connection.

No Limits

Compress as many files as your device can handle with no daily caps or file size limits.

Compression Pro Tips

01

Level High

Use “High” compression for PDFs meant mainly for web viewing or email attachments.

02

Level Medium

Use “Medium” for resumes, proposals and contracts to keep text razor-sharp.

03

Scanned PDFs

Compression is most effective on image-heavy or scanned PDFs compared to mostly text-based files.

04

Verify Size

Always check the final file size; if it is smaller than needed, recompress at a lower level for better quality.

The Safest PDF Compressor

We combine powerful PDF compression algorithms with strict privacy by running everything locally on your device.

Frequently Asked Questions

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