Frequently asked questions

Plain answers about how these tools work and why your files stay private.

How does this tool actually work?

When you open a tool, your browser downloads a small set of instructions: the page itself. That is the only thing that ever travels over the internet.

When you choose a PDF, the file opens inside your own browser, the same way a file opens in Word or Excel on your laptop. Your computer does the work, and the result is saved straight back to your Downloads folder. No server is involved at any point.

How is this different from other PDF websites?

Most PDF websites upload your file to their servers, process it there, and send the result back. Your privacy then depends on their policies: how long they keep files, who can access them, and how well their servers are secured.

Here, the file physically never leaves your computer, so your privacy does not depend on a promise.

How do I know my files really stay private?

You can test it yourself in ten seconds: open any tool, let the page load, then switch off your WiFi. The tool keeps working. That is only possible because nothing is being sent anywhere.

Anyone technical can also inspect the page in their browser and confirm that no file ever leaves your machine.

Why not just ask ChatGPT or another AI chatbot?

AI chatbots are built to read documents and answer questions about them, not to process files. To use one, your PDF gets uploaded to their servers, free plans have file size and daily usage caps, and getting hundreds of split pages back as separate downloads is clumsy at best.

For a question about what a document says, a chatbot is a good choice. For splitting, merging or editing the file itself, a purpose-built tool is faster, has no usage limits, and your file stays on your computer.

Is it free?

Yes. Every tool on this site is free, with no accounts, no sign-up and no limit on how many files you process.

Is there a file size limit?

There is no fixed limit. Because your own computer does the work, the practical limit is your machine's memory. Everyday documents are no trouble at all. Very large files of several hundred megabytes can be slow on older machines, and the tool tells you when a file is too large rather than failing silently.

What happens when I close the tab?

Everything is cleared. There is no account, no history and no stored copy anywhere. If you need to work on the same file again, you simply open it again from your computer.