Compress PDF
How to Compress a PDF
Upload your file, choose settings, and get a smaller size without losing important quality.
1) Upload PDF
Drag and drop your PDF or select it from your device. Processing happens locally in your browser.
2) Adjust and compress
Select a strategy (QPDF or Raster), enable linearization if needed, and click “Compress”.
3) Download result
Get your optimized PDF and check how much space you saved.
More HatchMyPDF tools
Free, watermark-free, privacy-first. Everything runs in your browser.
Compress PDF online - fast, private, in your browser (FAQ)
Compression runs locally in your browser with WebAssembly and Web Workers. Your PDF never leaves the device and can work offline after the page loads. Images are recompressed, duplicate objects removed, and the optional “Linearize” switch makes the file open faster on the web.
We do not receive or store your PDFs. Only anonymous Google analytics may load on the page.
Limits depend on your RAM and browser. Modern desktops handle tens to hundreds of MB; close unused tabs or use a desktop for very large scans. The queue lets you compress multiple files one by one.
Yes - no account and no paywall. Funded by ads and optional donations. All processing stays on your device.