About Pdfect

Pdfect is a collection of free online PDF tools — merge, split, compress, convert, protect, sign and OCR — with one defining difference: everything runs inside your browser. Your documents are never uploaded to a server, because there is no server doing the work.

Why we built it this way

Almost every free PDF tool online works by uploading your file to a computer somewhere, processing it there, and sending the result back. For a lot of documents that is fine. But PDFs are also how we handle the most private things we own: signed contracts, payslips, bank statements, scans of passports and ID cards, medical letters. Handing those to an anonymous server — trusting that it deletes them, that no one reads them, that it is never breached — is a real cost that most tools ask you to pay without mentioning it.

Pdfect exists because that cost is now avoidable. Modern browsers, together with WebAssembly, can run the same heavy document libraries that used to require a data center. So we moved the work to where the file already is: your device. Nothing is uploaded, nothing is stored, and nothing is seen by us — not because we promise to be careful, but because the architecture makes it impossible.

What that makes possible

• Private by construction. Files stay on your device. Disconnect from the internet after the page loads and the tools keep working — proof that nothing is being sent anywhere.
• No limits. Processing costs us nothing, so there are no queues, no daily caps, no maximum batch size and no watermarks stamped across your pages.
• No sign-up. There is nothing to register for and no account to delete. Open a tool and use it.
• Fast. There is no upload-and-download round-trip — the slowest part of most online tools simply does not exist here.

How it is built

Under the hood, Pdfect uses well-established open technologies running client-side: a PDF library for structural edits like merging, splitting and form filling; a renderer for turning pages into images and pulling out text; a WebAssembly build of qpdf for real AES-256 password encryption; and a WebAssembly OCR engine with self-hosted language models for turning scans into searchable text. None of these need a server, so none of them get one.

We are deliberate about what we do not offer. High-fidelity conversion from PDF to editable Word, Excel or PowerPoint genuinely requires heavy engines that are impractical to run in a browser, so rather than upload your files to do it, we leave those conversions out. If a tool would compromise the privacy promise, it does not ship.

How it stays free

Pdfect is free and supported by unobtrusive advertising. Ads never have access to the files you process — they cannot, since your files never leave your device. If you want to understand the tools in more depth, our guides explain how compression, OCR, password protection and the rest actually work.

If a tool you need is missing, tell us — the roadmap is driven by requests.