Free PDF Compressor — Reduce PDF Size Instantly
Compress any PDF in seconds — right in your browser. No uploads, no privacy risk, no limits. Perfect for WhatsApp, email, and cloud storage.
Drop your PDF here or click to browse
PDF files only · Any size
🔒 100% Private
Your PDF is processed entirely in your browser. It is never uploaded to any server. Not even we can see your file.
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How to Compress a PDF — 3 Steps
No installs, no accounts, no waiting on a server — just drop, pick, done.
Upload Your PDF
Drop your PDF or click to browse. Any size, any number of pages — it never leaves your device.
Choose Compression
Pick a level. Balanced works great for WhatsApp, email, and cloud storage without visible quality loss.
Download
See the exact size saved and grab your compressed PDF instantly. No email required.
Straight answers, no marketing fluff
Frequently Asked Questions — PDF Compressor
Is my PDF safe? Does it get uploaded anywhere?
Your file never leaves your device. All compression happens locally in your browser. We have no server that receives your PDF — it is 100% private.
Is this PDF compressor really free?
Yes, completely free. No signup, no email, no payment. The tool runs entirely in your browser using JavaScript and requires no server.
What is the file size limit?
There is no server-side limit because everything runs in your browser. Very large PDFs (50MB+) may take longer depending on your device speed.
How much will my PDF shrink?
PDF files with images typically compress 50–80%. Text-only PDFs compress 20–40%. The tool shows exact before and after file size so you always know your savings.
Can I compress a PDF for WhatsApp?
Yes. WhatsApp allows PDF attachments up to 100MB. Use the Balanced or Maximum compression setting to reduce your PDF size before sending. The compressed PDF will look visually identical on most screens.
Will the compressed PDF look different?
The visual layout is preserved. Compression converts pages to high-quality images, so text appears very slightly softer at maximum zoom. For WhatsApp, email, or screen viewing, the difference is not noticeable.
Can I still copy text from the compressed PDF?
The compressed PDF is image-based, so text is not directly selectable or searchable. If you need a searchable PDF, use the Best Quality setting.