pdfMB

Every PDF tool you need,
right in your browser

Compress, merge, convert, sign and more. Free, no sign-up, and your files are never uploaded.

PDF

Tools

Organize

Optimize

Convert

Edit & sign

Security

Compare & OCR

zZPDF

Your file never leaves your device

pdfMB works inside your browser. Nothing is sent to a server, so nobody else can see your file — handy for ID copies, payslips and anything private. Once the compress page is open, it keeps working even if you go offline.

How to check it yourself