Compress PDF – Reduce PDF Size from MB to KB
Free, fast and private. Your file never leaves your device.
How to compress a PDF
- Choose your PDF. Click the box or drag your file into it.
- Pick a size. Choose Small for email and WhatsApp, or Smallest for the tiniest file.
- Download. Your smaller PDF is ready in seconds.
Why use this PDF compressor?
100% private
Compression happens in your browser. Your documents are never uploaded, stored or seen by anyone.
MB to KB
Scans, brochures and photo-heavy PDFs often shrink by 90% or more, often from several MB to a few hundred KB.
Sharp text
Only photos are made smaller. Text, tables and drawings stay perfectly crisp at every level.
Free, no sign-up
No account, no watermark, no limits. Works on phones, tablets and computers.
Frequently asked questions
Is this PDF compressor free?
Yes. It is completely free, with no sign-up, no watermark and no daily limit.
Are my PDF files uploaded to a server?
No. The compression runs inside your own web browser, so your file never leaves your device. This makes it safe for private and confidential documents.
How can I reduce a PDF from MB to KB?
Choose the Small or Smallest level. Most PDFs are large because of photos and scans, and these levels scale the photos down to a screen-friendly resolution. Scanned documents and brochures usually drop from several MB to a few hundred KB.
Will compressing my PDF make the text blurry?
No. Text, tables and vector drawings are never changed at any level. Only photos are made smaller. Choose Best quality if you want no quality change at all.
What is the best level for email or WhatsApp?
Small is recommended for email and WhatsApp. It keeps photos clear on phones and computers while making the file much smaller.
Can I compress a password-protected PDF?
Not yet. Remove the password first (for example by printing to PDF), then compress the file.