100% in-browser · files never uploaded

Free PDF tools that keep every file on your device

Sixteen PDF tools that run entirely inside this page. The file you open is read from your own disk and processed in memory — it is never uploaded, no server ever receives it, and there is no account to create. Free files up to 50 MB, 20 at a time.

Private by design

How it works

Three steps. Zero servers. Your files stay on your device the entire time.

1

Choose a tool

Pick from merge, split, convert, encrypt and more.

2

Add your files

Drag & drop. Processing happens in your browser with WebAssembly & JavaScript.

3

Download

Grab your result instantly. Nothing was ever uploaded.

Questions

Frequently asked

No. Every tool runs entirely in your browser using JavaScript and WebAssembly. Your files never leave your device, so there is nothing for us to see, store, or leak.

No installation, no sign-up, no plugins. Open a tool page and start working immediately in any modern browser.

You can process files up to 50 MB, and up to 20 files per task. Because everything runs locally in your browser, very large files mainly depend on your device's available memory.

Yes. Every one of the 16 tools — including Compress — is completely free, with no sign-up. Compression runs right in your browser like the rest.

We apply standard PDF password protection in your browser. Choose a strong password — we never see it and cannot recover it for you.

Yes. The site is fully responsive. Note that very large files may be limited by your phone's available memory.

Guides from actually fixing these files

Every tool above has a written guide behind it — what goes wrong, why it goes wrong, and the order to try things in. Written from support work, not from a product page.

How to password-protect a PDF without locking yourself out

Locking a PDF is easy; keeping it usable is the hard part. When to protect a file, open vs permission passwords, and habits that prevent access headaches.

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How to extract pages from a PDF without breaking the layout

Pull out the pages you need without cropped content, flipped orientation, or numbering that stops making sense. A practical, clean-result guide.

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The easiest way to send large PDF files without endless back-and-forth

Too big for email, too slow on mobile, "can you resend it?" Here's how to choose between compressing, splitting, or sharing a link so files just go through.

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How to sign a PDF without printing anything

Stop printing just to sign. Here's which signing method fits which document, how to keep signatures clean and professional, and how to send them back right.

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How to merge PDF files without ending up with a total mess

Mixed page sizes, sideways pages, wrong order. Here's a simple prep-merge-review system for combining PDFs into one clean, shareable document.

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Scanned PDFs are a mess: here's how to make them searchable

A scan looks like a document but acts like a photo — no search, no copy. Here's what OCR actually does, why it fails, and how to make scans usable.

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Why PDFs always break at the worst possible time

The deadline's close, you send the file — and the fonts, spacing, or margins fall apart. Here's why PDFs break and how to stop it before it embarrasses you.

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How to compress a PDF without ruining quality

Why PDFs get huge, how to tell image-heavy from text-heavy files, and how to shrink one without making the text fuzzy or the charts unreadable.

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Why your PDF form won't work and how to fix it

Fields won't type, checkboxes freeze, answers vanish after saving. Here's why fillable PDF forms break across devices and apps — and how to fix them.

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How to edit a PDF without paying for expensive software

Most edits are tiny — a date, a name, a stray page. Here's how to pick the cheapest, least risky way to fix a PDF without wrecking its fonts or layout.

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All guides →