PDF tool

Compress PDF

Reduce PDF file size for easy sharing and uploading.

PrivConvert
Privacy-first conversion
No files stored
In-memory processing
Deleted instantly
No sign-up needed

Complete the security check to begin

Smaller PDFs, same content

Large PDF files can be hard to share via email or upload to websites. Our compressor optimizes the internal structure of your PDF to reduce its size while maintaining readability.

  • Email-friendly - get under attachment size limits
  • Optimized streams - re-encodes internal data for efficiency
  • Preserves text - no quality loss on text and vector content

Private by design, not as an afterthought

Privacy here is not a checkbox. Every job is engineered so your data never lingers, leaks or gets reused.

Isolated sandbox

Every conversion runs in its own locked-down process with no network access, so files can never leak or interfere with one another.

No human ever sees it

Your files are handled entirely by automated code. No staff, partner or AI model ever reads, stores or trains on your data.

Zero data retention

Files are processed in volatile memory (RAM) and purged the instant your download is ready — nothing is ever written to disk, cached or backed up.

Encrypted transfers

Every upload and download is protected with TLS 1.3, so your document cannot be intercepted on the way to the server or back to you.

A tool you do not have to worry about

Professionals reach for PrivConvert when the document they are converting is sensitive and cannot be left sitting on someone else’s server.

250 MB Max file size
450+ Conversion tools
0 sec File retention
100% Free to use

Frequently Asked Questions

How much smaller will my PDF be?
Typical reduction is 30-70% depending on the content. Image-heavy PDFs see the biggest savings.
Will compression reduce the quality?
Text and vector graphics remain perfect. Images may be slightly optimized but remain visually crisp.
Is there a file size limit?
You can upload PDFs up to 250 MB. Most compressed outputs are well under email attachment limits.
Is this tool really free?
Yes, completely free with no hidden fees, no watermarks, and no sign-up required. You can convert as many files as you need.
Are my files private and secure?
Absolutely. Every conversion runs in an isolated, in-memory process. Your files never touch the disk, are never stored or shared, and are deleted from memory the moment your download is ready.

Further Reading