About PDF Doguu

PDF Doguu is a small set of PDF tools built around one idea: your documents are none of our business.

Most online PDF services work by uploading your file to their servers, processing it there, and sending the result back. That is convenient for the service, but it means your contract, your medical record, or your child's school form spends time on someone else's computer, governed by a retention policy you probably have not read.

This site takes the opposite approach. Modern browsers are powerful enough to read and write PDF files on their own, so every tool here (merge, split, insert, delete pages, reorder, rotate, compress, sign, add page numbers, add a watermark, and convert between images and PDF) runs entirely inside your browser. Nothing is transmitted.

There is no sign-up and no installation, and we never add our own watermark to your files. The site is kept free by unobtrusive advertising.

It began as a Korean-language service (한국어판) and this English version brings the same tools to everyone else. Questions and suggestions are welcome via the contact page.