Online · in your browser

Quick PDF tools, 100% private.

Merge, compress, split, watermark, add page numbers or turn images into a PDF — processed entirely on your device. Your files are never uploaded. For heavy jobs, the free desktop app does more.

Merge

Combine several PDFs into one, in the order you add them.

Drop PDFs here, or click to add

Runs in your browser · nothing uploaded

Needs the desktop app

Some tools work better natively.

A browser tab cannot ship the heavy engines or handle multi-gigabyte files efficiently. These jobs run in the free OffPDF desktop app — the same privacy, with more power.

Get the desktop app

OCR (make searchable)Uses Tesseract with full language models, which is too heavy for every browser tab.
Office ↔ PDF & PDF/ANeeds LibreOffice to render Word, Excel and PowerPoint files with the correct layout.
Protect / UnlockUses qpdf AES-256 encryption, which is not available client-side.
RepairA deep rebuild of damaged PDF structures relies on the native qpdf engine.
Poster / tile & ComparePixel-accurate rendering of huge plans is much faster in the desktop app.