Sixteen free PDF tools that run in your browser. Compress, merge, split, redact, count tokens for LLMs, and more. Your files never leave your device. Nothing is uploaded or logged.
Most PDF sites upload your files to remote servers, process them there, and ask you to trust that everything was deleted. PDFShore takes a different approach: the code runs inside your browser, and your documents never leave your device.
When you drop a PDF here, no upload happens. The file stays in your browser tab. There is no server-side queue, no temporary storage bucket, and no network request carrying your data. Open DevTools and watch the Network tab while you work. You will see zero outbound file traffic. That is the proof.
The heavy lifting uses pdf-lib compiled to WebAssembly, running inside Web Workers so the page stays responsive. Your browser has the same power a server would, minus the privacy risk. OCR runs on-device with Tesseract.js, and the token counter uses a local copy of the cl100k_base tokenizer. No API calls, no cloud dependency.
Lawyers reviewing contracts, HR teams processing payslips, healthcare workers redacting patient data, students preparing grant proposals. If a document matters enough to protect, it should not travel through someone else's infrastructure. PDFShore removes that risk entirely.
The result is a set of PDF tools that work the way security-conscious professionals expect: fast, offline-capable, and structurally incapable of leaking your files. No account to create, no email to verify, no trust required.
No account, no upload queue, no waiting room.
Guides on PDFs, privacy, and preparing documents for AI workflows.
· by Max Shore
A practical page estimate for model context windows, and why tokens still matter more than page count.
Read article· by Max Shore
How silent truncation happens with long PDFs, why it is risky, and a practical workflow to prevent missing sections.
Read article· by Max Shore
Why word count alone misleads AI prompt planning, and how PDF structure can inflate tokens far beyond expectation.
Read articleShort, honest answers.