Password Protect / Unlock

Lock a PDF with a password (AES-256, one or many files at once), or remove the password from a PDF you own.

This free tool runs entirely in your browser. Your PDF is processed on your own device and is never uploaded to a server — no sign-up and no install needed.

More PDF tools

• PDF ↔ Image — Convert all or selected pages to PNG/JPEG images.
• Merge PDF — Combine multiple PDF files in the order you choose.
• Split PDF — Break a PDF into multiple files by page range.
• Compress PDF — Shrink scanned or image-heavy PDFs, one file or many at once (text becomes non-selectable).
• Delete Pages — Remove only the pages you don't need.
• Rotate & Reorder — Rotate pages and drag them into the order you want.
• Watermark — Stamp a text watermark across every page, on one PDF or several at once.
• Extract Text — Pull the text out of a PDF as a plain .txt file.
• Edit Metadata — View or clear a PDF's hidden author, title, and other info.
• Add Page Numbers — Add page numbers to every page — pick the position, format, size, and color. Works on one PDF or several.
• Grayscale — Convert every page to black and white for printing or smaller files.
• Image Stamp — Place a signature, seal, or logo image onto every page.
• Resize Pages — Unify mismatched scanned page sizes to A4/Letter, or just add margins.
• Extract Pages — Pick the pages you need and save them as a new PDF. Page-range input supported.
• Extract Images — Pull the photos and pictures embedded in a PDF out at their original size.
• Remove Blank Pages — Automatically find blank pages in a scan and delete them in one go.
• Crop Pages — Trim the outer margins off every page automatically, or cut exactly as much as you want.
• Compare PDFs — Overlay two PDFs page by page and highlight what changed in red.