Privacy
Last changed 18 August 2026
This site has no accounts, no analytics and no upload. Your documents are opened, changed and saved inside your own browser, and this page explains exactly what that means.
Your files never leave the tab
When you drop a file in, the browser reads it into memory and hands it to a worker running on your own machine. Pages are drawn, rewritten, encrypted and packed back into a PDF there. What you download at the end was built a few centimetres from your screen.
Nothing is sent anywhere along the way. There is no upload step, no queue, no temporary copy on a server, because there is no server involved in the work at all. Closing the tab throws all of it away.
What is kept on your device
Three small things, all of them on your machine and none of them about your documents: the theme you picked, the language you picked, and the chain you build in Chain Tools so it is ready next time.
Passwords are the deliberate exception: a chain remembers its steps but never the password you typed into one. Clearing your browser's site data removes everything above.
What is collected about you
Nothing. There is no account to create, no analytics script, no tracking pixel, no advertising network, no A/B test, no session recording. The language choice is stored in a cookie only so that opening the bare address can send you to the right language.
What the host can see
The site itself is a set of static files delivered by a hosting provider (Vercel). Like every web host, it can record the usual delivery information for a request: an IP address, a timestamp, which file was fetched, and which browser asked for it.
That is the only trace of your visit, it is not ours to enrich, and it never contains your documents — because your documents are never part of a request.
No third parties on the page
The page loads no external fonts, scripts, images or embeds. The PDF engine, the encryption module, the QR decoder and the typeface all come from this site's own address, so opening a tool does not quietly tell anyone else that you did.
The optional conversion service
Four tools — Word to PDF, PDF to Word, PDF/A and OCR — need software that cannot run in a browser. They talk to a small service that you install and run on your own computer, so the file goes from your browser to your own machine and still not to us.
If you have not installed it, those tools simply say so and do nothing. Note that browsers block a public web page from reaching a service on your machine, so in practice these four are for people running Dosya Kalemi locally.
If you write to us
The address in the footer is an ordinary mailbox, so an email you send is handled by your mail provider and ours in the usual way, and it stays in the inbox until it is deleted. Nothing in the site sends it for you.
Please do not attach the document that caused the problem. Describing what you did and what happened is almost always enough, and it keeps a file that never needed to leave your machine from leaving it.