Online · in your browser
Quick PDF tools, 100% private.
Merge, compress, split, watermark, add page numbers, convert PDF pages to PNG or JPG, 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.
Add two or more PDFs, order them with the arrows, then run merge.
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.
Conversion guides
Convert files privately with OffPDF.
Choose a format pair for supported files, privacy details and simple instructions.
JPG → PDF
Use in your browser
PNG → PDF
Use in your browser
HEIC → PDF
Free desktop converter
PDF → JPG
Use in your browser
PDF → PNG
Use in your browser
Word → PDF
Free desktop converter
Excel → PDF
Free desktop converter
PowerPoint → PDF
Free desktop converter
PDF → Word
Free desktop converter
PDF → PowerPoint
Free desktop converter