PDF Compressor

Compress your PDF files

Click to upload a PDF

or drag and drop

PDF up to 10MB

70%

Compress PDF – Reduce File Size Without Losing Quality

Our PDF Compressor helps you shrink large PDF files while preserving text clarity and image quality. Perfect for email attachments, web uploads, or storage optimization—reduce file sizes by up to 90% without compromising readability.

Key Benefits

✔ Faster file sharing & uploading
✔ Lower storage usage
✔ Maintains text sharpness & image details
✔ Works on any device (Windows, Mac, mobile)

Reasons to Choose Our PDF Compressor

📉 Smart Compression – Balances quality and file size automatically
⚡ Lightning Fast – Processes 100+ page PDFs in seconds
🔒 Secure Processing – Files deleted after 1 hour (no storage)
🖼️ Image Optimization – Downsizes images while keeping them clear
📄 Text Preservation – All text remains selectable and searchable
🌐 Web-Ready – Creates PDFs optimized for websites and emails

How to Compress a PDF – 3 Simple Steps

Upload PDF – Drag & drop your file (up to 50MB)
Choose Compression Level:
- Low (Best quality, moderate size reduction)
- Medium (Recommended balance)
- High (Maximum compression)
Download – Get your optimized PDF instantly

Pro Tip:

For scanned documents, use Medium compression to keep text readable while reducing file size.

3 Related Tools to Try

✂️ PDF Splitter – Divide large PDFs files
🔄 Image to PDF – Easily convert images to PDF
📄 PDF Merger – Combine PDF files

What Our Users Say

More than a million users actively engage with our applications every month.

John D.

★★★★★

Image-Resizer.io has saved me countless hours. As a developer, I frequently need to optimize images for different screen sizes, and this tool makes it incredibly easy. The batch processing feature is a game-changer!

Sarah M.

I've tried many image resizing tools, but Image-Resizer.io stands out for its simplicity and quality. The compression is excellent without noticeable quality loss. The interface is intuitive and the results are consistent.

Robert K.

★★★★☆

Our online store needed hundreds of product images resized for different platforms. Image-Resizer.io handled everything perfectly. The only reason I'm not giving 5 stars is that I wish the free version allowed more images per batch.

Amanda L.

As someone who isn't very tech-savvy, I appreciate how easy Image-Resizer.io is to use. I can quickly resize all my blog images to the perfect dimensions without losing quality. It's made my workflow so much smoother!

Thomas P.

The quality preservation when resizing is exceptional. I use this tool to prepare images for my portfolio website and client deliveries. The ability to maintain aspect ratio while setting exact dimensions is perfect for my needs.

Maria G.

This tool has revolutionized how I create content for different social platforms. I can resize one image to all the required dimensions in seconds. The preset sizes for Instagram, Facebook, etc. are incredibly helpful!

David W.

Great tool for quick image resizing during the design process. The interface is clean and straightforward. I deducted one star because I'd love to see more advanced options for designers like DPI adjustment.

Emma B.

Our marketing team uses Image-Resizer.io daily for preparing assets for campaigns. The consistent results save us time in quality checks. The premium features are worth every penny for our volume of work.

Carlos H.

Perfect for creating app icons and splash screens in all required resolutions. The API integration allows us to automate part of our build process. Excellent support when we had questions about implementation.

Lisa T.

I was spending hours resizing product images in basic software before finding Image-Resizer.io. Now I can process my entire catalog in minutes. The simple interface means I don't need to hire someone to do this for me.