Compress PDF Online
Shrink a large PDF so it's easy to email and upload. Choose a compression level and PDF for Joy reduces the file size right on your device — private, free, with no signup and no watermark.
Upload a PDF to compress
or drag & drop your PDF here
How to convert Compress PDF
Three simple steps — all on your device.
- 1
Upload your PDF
Drag and drop the PDF you want to shrink. It's processed on your device — nothing is uploaded.
- 2
Pick a level
Choose High quality, Recommended, or Smallest file depending on how much you need to save.
- 3
Download the smaller PDF
See the before/after size and how much you saved, then download — free, with no watermark.
Why use Compress PDF on PDF for Joy
100% private, on-device
Your files are processed entirely in your browser. Nothing is uploaded to or stored on our servers, so sensitive documents stay yours.
Adjustable levels
Balance quality against file size with three simple presets.
See the savings
Compare original and compressed sizes and the percentage saved.
Free, no signup, no watermark
Convert and edit as many files as you like — no account, no email, no watermark, and no arbitrary limits.
Reduce PDF size without uploading it
Email attachment limits and slow uploads are usually caused by oversized PDFs — especially scans and image-heavy documents. PDF for Joy compresses them in your browser, so your file never touches a server.
It works by re-encoding each page as an optimised image at your chosen quality. That shrinks large scanned PDFs dramatically; the trade-off is that selectable text becomes part of the page image, which the tool tells you upfront.
Private by design. Every file stays on your device — nothing is uploaded to or stored on our servers.
Frequently asked questions
How do I compress a PDF?
Upload your PDF, choose a compression level, and click Compress. You'll see the new size and can download it — free, no watermark.
Will compression reduce quality?
You control it with the level presets. Higher compression means a smaller file with softer images; 'High quality' keeps things sharp.
Does the text stay selectable?
This tool rasterises pages to shrink them, so text becomes part of the page image. If you need selectable text preserved, keep the original.
Are my files uploaded to a server?
No. Every conversion and edit happens inside your own browser using your device's processing power. Your files never leave your computer or phone, which makes this safe for IDs, bank statements, contracts and other private documents.