Compress PDFs for faster sharing.
Click to browse or drag and drop
Select multiple files to compress in batch
📁 Max 500MB per file • Supported formats: application/pdf • Select multiple files
About PDF Compressor
Compress PDFs for faster sharing.
Shrink files for the web, email, and storage without sacrificing the quality you need.
PDF Compressor compresses on our servers; time depends on file size and type.
Pick balanced, high, or smaller presets to match email, web, or archive needs.
Shrink images, videos, PDFs, and documents so uploads and sharing feel instant.
Files travel over HTTPS and are removed by an automated cleanup job after processing.
Compress multiple files in one session and download results individually or in bulk.
No sign-up is required to start; usage limits and larger file allowances depend on your plan.
Upload, compress, and download in a straightforward flow.
Drag and drop or browse to add one or more files supported by this compressor.
Select a preset that balances file size reduction with the clarity you need.
Grab compressed files individually or as a batch when processing multiple uploads.
Common workflows where smaller files make sharing and publishing easier.
Step-by-step instructions for compressing files.
Open the compressor above and add the files you want to shrink.
Use quality presets or a target size when you need a specific limit.
Start the job and watch progress while each file is optimized.
Save compressed outputs locally or send smaller attachments right away.
PDF Compressor
Compress PDFs for faster sharing.
PDF Compressor
Email attachments, faster page loads, storage savings, and sharing large media on slow networks.
PDF Compressor
Quality presets and batch compression in the browser, with no desktop software to install.
Where supported, files are processed directly in your browser. Tools that need more advanced processing upload the file to ToolzStack servers, where an automated cleanup job removes it after processing.
Scroll up to compress a file or explore related tools below.
Common answers so you can compress files faster with confidence.
Upload your PDF, pick quality/compression settings, then download the optimized file.
Yes. PDF compression is optimized to preserve readability while reducing file size.
Yes. Compressed PDFs are easier to share and often meet email size limits.
Yes. Scanned PDFs usually benefit significantly from compression because image-heavy pages can be optimized well.
Yes. PDF compression aims to preserve structure and usability while reducing size.