Lock PDF

Protect your PDF with a password to restrict access.

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How to Password Protect a PDF

Add password protection to any PDF in seconds.

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Select the PDF file you want to password-protect.

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Enter a strong password. This will be required to open the PDF.

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Download your locked, encrypted PDF instantly.

Simple, private, and built for real people.

Always Free

No hidden fees. No watermarks. No subscriptions.

Privacy First

Files processed locally. Nothing uploaded. Auto-deleted.

Fast

Merges in seconds. No waiting. No account needed.

Quality Preserved

Original formatting, fonts, and images stay intact.

Merge PDF

Combine multiple PDFs into a single document in your desired order.

Split PDF

Separate PDF pages into individual files or page ranges.

Organize PDF

Reorder and rearrange pages in your PDF visually with drag & drop.

Remove Pages

Remove unwanted pages from your PDF document easily.

Compress PDF

Reduce PDF file size without losing quality.