Privacy

Last updated: October 5, 2026

UnboundPDF is a collection of free PDF tools that run entirely inside your web browser. This page explains, in plain language, exactly what happens to your files and what information we do and don't have.

Your documents never leave your device

When you open a PDF, image, or Word file in any UnboundPDF tool, it is read and processed by code running in your own browser, using your device's memory and processor. The file is not uploaded. We have no server that receives, stores, scans, or logs the contents of your documents.

This means the document bytes, the text extracted from them, the file names, any passwords you type to unlock a protected PDF, and any signature or image you add are all handled locally. None of it is transmitted to us, to an analytics service, or to any third party. There is no account to create and nothing to sign in to.

Everything below stays on your device:

• The files you open and the files you download
• Text, images, and metadata extracted from those files
• Passwords you enter to open or protect a PDF
• Signatures, stamps, and annotations you add

Two exceptions

We would rather be precise than sweeping, so here are the two cases where your browser talks to the internet while you work. In neither case is your document sent to us.

1. Recognize text in scans (OCR)

The OCR tool uses Tesseract, an open-source recognition engine. The first time you use it, your browser downloads the engine and its language data — about 14 MB for the English path, downloaded once from unboundpdf.com (first-party, no third-party CDN). Additional languages are separate downloads. That download is program code, not your file. Your scanned image is not uploaded; the recognition runs on your device. You just need an internet connection the first time so the engine can be fetched, after which your browser will typically cache it.

2. HTML to PDF with remote images

If you convert HTML to a PDF and that HTML references images hosted elsewhere (for example <img src="https://example.com/logo.png">), your browser will fetch those images so it can draw them into the PDF — exactly as it would if you opened the same HTML in a normal browser tab. That is a resource you chose to reference being loaded by your browser; it is not your document being sent out. If you want zero external requests, use HTML with no remote references.

No tracking, no advertising cookies

UnboundPDF does not use analytics, tracking pixels, advertising cookies, or similar telemetry, and it does not store tracking identifiers in your browser (no tracking cookies and no localStorage profiling). We are not building a profile of you, and we do not sell or share data. The only personal information we hold is what you choose to send us: a review (below) or an email.

About server logs

Like essentially every website, the server and content-delivery network that host UnboundPDF may keep standard technical access logs — for example the IP address making a request, the time, and which page or file was served — for security, abuse prevention, and reliability. These logs are a normal part of serving any website and are entirely separate from your documents. They never contain the contents of your files, because your files are never sent to the server. We do not use these logs to track or profile you.

Reviews you choose to publish

If you write a review on our review page, we store what you enter in the form: the name you want shown, your optional role or company, whether you know the founder, the tool you used, your rating, and your text, together with the time it was published and the version of the consent you gave. You tick a box to agree to publication, and the review then appears publicly on the homepage straight away. That consent is the basis on which we keep and show it.

To stop the form being flooded, the review service keeps a one-way hash of the submitting IP address in memory and counts submissions against it for one hour. The hash is never written to disk; it is cleared within a few minutes of that hour ending, or when the service restarts. The standard access logs described below still apply.

The reviews are stored on the server that hosts UnboundPDF, not with a third-party review platform, and are not used for anything else. To have your review changed or removed, email hello@unboundpdf.com — we can hide it from the homepage at once.

Children

UnboundPDF is a general-purpose utility and is not directed at children. We do not knowingly collect personal information from children.

Changes to this page

If we change how the tools handle data, we will update this page and the "last updated" date above. Because the tools run in your browser, you can always verify our claims yourself: open your browser's developer tools and watch the Network tab while you use a tool — your document is never uploaded.

Questions

If anything here is unclear, or you believe a tool is behaving differently than described, please tell us at hello@unboundpdf.com. See the Contact page for more.