About PDF Converter

PDF Converter is a PDF workspace built on a simple idea: your documents should not have to leave your device to be merged, compressed, converted or signed.

Modern browsers can run serious software. We combine trusted open-source engines – Mozilla’s PDF.js, pdf-lib, QPDF and Tesseract – compiled to WebAssembly, with a clean interface designed to get one job done quickly. For the few jobs browsers cannot do well, we use a server and tell you so.

Our principles

• Do the work locally whenever it is feasible.
• Never pretend. If a conversion is approximate, the tool page explains what is kept and what is not.
• Free should be useful. Basic tools need no account and have no watermark.

Open-source credits

PDF.js (Apache-2.0), pdf-lib (MIT), QPDF (Apache-2.0), Tesseract and tesseract.js (Apache-2.0), fontkit (MIT), docx (MIT), ExcelJS (MIT), PptxGenJS (MIT), Mammoth (BSD-2), marked (MIT), html2canvas (MIT), JSZip (MIT), DejaVu fonts (Bitstream Vera licence), Liberation fonts and Inter (SIL OFL 1.1).