Compress a PDF.
Reduce your PDF's file size right in your browser, then see the before and after — nothing is uploaded.
Drop your PDF here
No registration. Files are processed on your device only.
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PiddyFree. No sign-up. Nothing uploaded.
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How it works
Piddy runs entirely in your browser. When you open a file, it's read and edited on your own device using JavaScript — nothing is sent to a server. When you're done, the edited PDF is generated locally and downloaded straight to your computer.
Why private
Because your file never leaves your device, there's nothing to leak, store or lose. No account, no upload, no server-side copy of your document — ever.
Frequently asked questions
- How much smaller will my file get?
- It depends on the PDF — Piddy rebuilds the file's internal structure to remove redundant data. After compressing you'll see the before and after size.
- Will compressing affect quality?
- Compression optimizes the PDF's structure without altering the visual content of your pages.
- Is my PDF uploaded to compress it?
- No, compression runs entirely in your browser — your file is never sent to a server.
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