Download the offline editor (2.6 MB)
Why a single file
Plenty of workplaces will not let you install software, and plenty of documents should not be uploaded to a website in the first place — contracts, medical records, staff files, anything under a confidentiality obligation. A single HTML file sidesteps both problems. There is nothing to install and nothing to send anywhere.
What is inside it
The PDF engines are compiled into the file itself rather than loaded from the internet: the parser and renderer, the writer, and the font toolkit for embedding typefaces. That is why it is 2.6 MB, and why it works with the network cable pulled out.
Using it
- Download the file and keep it wherever you like — desktop, USB stick, a shared drive.
- Double-click it. It opens in your default browser as a normal page.
- Open a PDF, edit it, save. The result lands in your downloads folder.
It is identical to the web version. Same text editing, same font handling, same markup tools, same flatten option. The only difference is where the code comes from.
Sharing it with colleagues
Email it, drop it on a network share, or put it on a USB stick. There is no licence key, no activation and no per-seat limit. It is a web page, so it does not run as an executable and will not trip the software-install policies that block ordinary applications.
Browser support
Chrome, Edge, Firefox, Safari and any recent Chromium-based browser. It needs a browser from roughly the last five years and nothing else — no plug-in, no runtime, no Java.
Questions
Does the offline version expire?
No. It is a static file. It will keep working for as long as your browser does, with no licence check and no phoning home.
Is it safe to run a downloaded HTML file?
It runs in the browser sandbox like any web page, with no access to your system beyond the files you explicitly open. It is not an executable and cannot install anything.
Can I put it on a company server?
Yes. Host it on an intranet share and colleagues can open it from there. Nothing needs to reach the internet.
Why is it 2.6 MB?
Because the PDF parser, renderer, writer and font toolkit are all embedded in the file. That is the price of not needing a network connection.
Start editing
The editor opens instantly and runs on your own machine. Nothing is uploaded, and there is no account to create.