Add a password to a PDF with real 256-bit AES encryption — the file cannot be opened without it. Free in your browser — no sign-up, no watermarks.
Drop your PDF files here
or click to browse — Select multiple files for batch conversion
⚡ Instant — conversion starts the moment you add files. No sign-up, no watermarks. Why FileHugger
Contracts, statements, medical records and IDs travel by email and shared drives every day, and anyone who gets the file can open it. Set a password and the PDF is sealed with 256-bit AES — the same standard banks use — so only someone with the password can read it. The encryption is performed by the actual qpdf engine, the reference open-source PDF tool, so the protection is genuine, not a flag a viewer can ignore.
PDF is the universal document format: it locks layout, fonts and images so a file looks identical on every device and printer. Scans, invoices, forms, e-books and reports all travel as PDF. Because a PDF is a container rather than an image, turning its pages into JPG or PNG pictures — or bundling pictures into a PDF — are among the most common file tasks there are.
Contracts, statements, medical records and IDs travel through email accounts, shared drives and chat exports — and an ordinary PDF opens for whoever ends up holding it. Setting a password here encrypts the document with 256-bit AES, the same standard banks rely on, performed by the reference qpdf engine. This is real cryptography: without the password, the content is mathematically sealed, not merely flagged “please don’t open.”
Use it at the moment of exposure — right before the file leaves your control. Send the password through a different channel than the file (the classic: document by email, password by text), and choose one you can afford to remember: genuine encryption has no recovery door, and losing the password means losing the document. That severity is exactly what makes the protection worth having.
Yes — completely free, with no sign-up, no watermarks and no daily quota. Processing happens in this browser, so the practical limit is the memory available on your device.
Yes. Add as many files as you like — each one is processed in sequence with its own progress status, and you can download the results individually or all together as a ZIP archive.
No. Pages are copied at the object level — text, fonts, images and vector content are carried over as-is, without re-rendering. The output keeps the same sharpness and searchable text as the original.
It uses 256-bit AES, the modern standard qpdf applies for PDF encryption — genuinely secure, not a "flag" that a viewer politely honours. Choose a strong, memorable password: if you lose it, the file cannot be recovered, because there is no backdoor.
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