PDF tools that respect your privacy

Merge, split, encrypt, compress, extract images & analyze layout — all 100% in your browser, zero server uploads

Select PDFs

Up to 10 / PDF, max 1GB

Choose Operation

Files never leave your device

How does it work?

PrivaPDF uses the open-source pdf-lib JavaScript library to perform all PDF operations entirely in your browser. Your files are never uploaded to any server — everything happens locally on your device using your browser's processing power. Merge multiple PDFs into a single document, split pages into separate files, compress to reduce file size, or add AES-256 password protection — all without any cloud infrastructure. Processing uses JavaScript running in your browser tab, with no server-side components whatsoever. When you close the browser tab, all document data is automatically cleared from memory. Your PDFs remain completely private from start to finish.

What is PrivaPDF?

PrivaPDF is a free, browser-based PDF toolkit that lets you merge several PDFs into one document, split a file by page or custom page range, compress large PDFs to shrink their size, and lock files with AES-256 password protection — all without uploading anything to a server. People reach for it every day to combine scanned contract pages before emailing them, pull a single signed page out of a long agreement, squeeze a bulky report down so it fits an upload limit, or password-protect a bank statement or medical record before sharing it. It accepts standard PDF files, handles multi-file merges with drag-to-reorder, offers three compression levels, and uses industry-standard AES-256 encryption — the same algorithm used to protect financial data. Everything runs entirely in your browser using the open-source pdf-lib library: your files never leave your device, never touch a server, and are cleared from memory the moment you close the tab. There is no installation, no sign-up, and no account, and once the page has loaded it keeps working offline.

How to Use PrivaPDF (3 Steps)

  1. 1

    Upload PDF Files

    Drag and drop or click to select your PDF files. For merging, add multiple files and drag to rearrange their order before combining. All files load directly into your browser's memory — nothing is uploaded.

  2. 2

    Choose Operation

    Select from four operations: Merge (combine multiple PDFs into one), Split (extract individual pages or custom page ranges), Compress (reduce file size with three quality levels), or Encrypt (add AES-256 password protection).

  3. 3

    Process & Download

    Click to process and download the result instantly — no waiting for server processing. Large merges, encryptions, and splits all complete in seconds directly in your browser.

Why Browser-Based PDF Processing Is Safer

Popular online PDF tools — Smallpdf, ILovePDF, Adobe online — upload your files to remote cloud servers for processing, where confidential documents like legal contracts, financial statements, or medical records may be stored, accessed by staff, or exposed in a data breach. PrivaPDF takes the opposite approach: it uses the open-source pdf-lib JavaScript library to handle every operation in your browser's memory, so your PDFs never leave your device at any point. There is no server to hack and no employee who can open your files. Because the tool runs entirely client-side, you don't have to take this on trust — open your browser's DevTools Network tab while you merge, split, compress, or encrypt and you will see that no file upload request is ever made. For an even clearer proof, switch off your Wi-Fi after the page loads: every operation still works, because nothing was ever going to a server in the first place.

Frequently Asked Questions

Yes. PrivaPDF supports merging multiple PDF files into a single combined document. Upload all the files you need, drag to arrange them in your desired order, and merge with one click. All processing happens in your browser — even large multi-file merges never touch a server.
PrivaPDF adds AES-256 password protection to your PDF using the industry-standard encryption algorithm. You set the open password; the encryption process happens entirely in your browser using the pdf-lib library — your password and document content are never sent to any server.
PrivaPDF offers three compression levels: Balanced (recommended for most documents — good quality with meaningful size reduction), Maximum Compression (smallest possible file size with some quality trade-off), and Quality Priority (minimal compression that preserves the highest possible visual fidelity). Most users will find Balanced produces the best results.
Yes. You can split by extracting every page into individual files, or specify custom page ranges (for example, pages 1–3, 5, and 7–10) to extract exactly the pages you need. This works entirely in your browser — no uploading your document to a server.
Yes. PrivaPDF is completely free with no account required, no file size limits, and no usage restrictions. All PDF processing happens in your browser using the pdf-lib JavaScript library, so your documents are never uploaded to a server.
Yes to both. Once the page has loaded, every operation — merge, split, compress, and encrypt — runs entirely on your device with no network connection required, so you can use it on a plane or with Wi-Fi switched off. Your PDF is never sent anywhere; you can confirm this by opening your browser's DevTools Network tab while you work, or simply by disconnecting from the internet and watching every tool still function normally.
Yes. PrivaPDF encrypts your file with AES-256, the same industry-standard algorithm used to protect financial and government data, and the password you choose is applied entirely in your browser — it is never transmitted or stored anywhere. The encryption is real: anyone opening the protected PDF will be prompted for the password. Keep your password safe, because without it the file cannot be opened. If you still have the original unprotected PDF on your device, you can always re-encrypt with a different password or share the plain version instead.

Related reading

PDF Security & Encryption: Protect Your Documents