PDFtone is a complete PDF workspace that runs entirely in your browser. Drag and drop PDFs, Word docs, spreadsheets, and images to merge, split, compress, edit, sign, or convert them without ever uploading a file to a server. That means your sensitive or confidential documents stay safe, since all processing happens using your own device's memory and CPU. No sign-up required, the free plan gives you 2 files a day, and paid plans are available for heavier use.
