Compress PDF
Reduce PDF file size without leaving your browser. Pages are rendered and rebuilt so images can be heavily compressed while keeping things readable.
Compression level
Medium keeps more detail. High is more aggressive and usually gives the smallest files.
Drop PDF here or click to browse
Choose a single PDF file. Max 100 MB each.
Upload a single PDF up to 100 MB.
Pro: Process multiple files at once
Your files are processed in your browser and never leave this device.
Frequently asked questions
- How do I reduce PDF file size?
- Upload your PDF to our compressor. It reduces file size by optimising images while keeping text quality.
- Is there a file size limit?
- There is no hard server-side limit because compression runs in your browser. Very large files may still be limited by your device memory and browser.
- Will compressing a PDF reduce image quality?
- Compression usually reduces image size by lowering resolution or quality. Text remains sharp, but highly compressed PDFs can show some softness in photos or scans.
- Can I compress a PDF for email?
- Yes. Use the Compress PDF tool to create a smaller version of your PDF that is easier to send via email or upload to portals.
- Does compression affect the original PDF?
- No. Compression creates a new optimised PDF for download. Your original file stays on your device unchanged.