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Encrypt PDF

Protect PDF files directly in your browser with AES-256 encryption, no upload, and optional permissions.

Input

Private by design: your PDF files and passwords never leave your device.

Encrypted PDFs are not PDF/A-compliant. Digital signatures become cryptographically invalid.

Security

Use at least 16 characters and no reused password.

Weak
One opening password, all normal PDF functions allowed. The generated permissions password is not stored. Use Advanced if you want to manage security settings later in a PDF editor.

Good to know

The Encrypt PDF lets you protect with a password PDF files and confidential documents directly in your browser. It is useful for document workflows, office work, archiving, delivery preparation, and technical checks when PDF files need to be prepared or converted quickly.

Typical searches for this page include encrypt PDF, add PDF password, protect PDF, PDF with password, and PDF encryption. Processing runs locally in the browser, so documents are not uploaded for processing. A strong password is essential; forgotten passwords cannot be recovered reliably.

Typical use cases

Prepare documents for sending and archiving

Edit PDF files before email delivery, portal upload, internal archiving, or sharing with customers and colleagues.

Make PDFs usable in other formats

Convert content, pages, or parts into images, Office files, or structured working formats when a PDF cannot be processed directly.

Local editing of confidential documents

Use local processing for contracts, invoices, internal documents, or drafts that should not be transferred unnecessarily to external services.

Tips for better results

Keep the original file

Save the result under a new name and keep the original PDF until content, page order, quality, and file size have been checked.

Review before sharing

PDF structures, embedded fonts, images, passwords, and forms can behave differently depending on the file. Open important results before sending them.

How it works

Step by step

  1. 1

    Select a PDF

    Drop a PDF file or choose it from your file system. For tools that support multiple files, add more PDFs as needed.

  2. 2

    Review options

    Review page range, quality, output format, or security options for the desired result.

  3. 3

    Save the result

    Download the generated file and open it for review before sharing or archiving it.

Features

Edit PDFs without upload

Selected files are processed in the browser and are not sent to a server for editing.

Controlled output

Choose suitable options for pages, quality, format, security, or output scope.

Direct download

After local processing, the result is ready to download immediately.

Frequently asked questions

Are files uploaded when using the Encrypt PDF?

No. Processing runs locally in the browser. Files are not transferred to Xoricon or another server.

Is the original PDF preserved?

Yes. The tool creates a new output file. The selected original file on your device is not overwritten.

Why can PDF processing fail?

Possible causes include damaged files, strong encryption, unusual PDF structures, very large documents, or browser memory limits.

More tools

Unlock PDF

Remove known PDF password protection directly in your browser with no upload and batch processing.

Compress PDF

Reduce PDF file sizes locally in your browser with no upload and clear quality controls.

Merge PDF

Merge multiple PDF files locally in your browser into one new PDF using a custom order.

Delete PDF Pages

Delete pages from one or more PDF files locally in your browser and create new PDFs.