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Image / PDF Locker

Lock an image or PDF with browser-side encryption and unlock it later with the same password.

Lock a file

Images and PDFs are encrypted locally in your browser with a password.

Unlock a protected file

Open a saved .mlock file with the same password to recover the original image or PDF.

Unlocked file details will appear here.

Protect one image or PDF in a smaller, clearer workflow

Some files only need one extra step before they are stored or shared: add a password, save the protected copy, and know that you can unlock it later with the same password. This page is designed for that one-file workflow.

Typical uses

  • A personal PDF, statement or scan that should be kept in a locked copy
  • An image file that should not be left as-is inside a normal folder or email thread
  • A simple protected handoff where a full encrypted archive would be unnecessary

Better for one file than for a whole archive

This page is the simpler option when you only need to protect one image or one PDF. It works well for statements, scans, certificates, presentation exports, or any single file that should not sit around in an open copy. If several files belong together, Folder Encryptor is the better choice because it keeps them in one protected bundle.

  • Use it for one statement, scan, report or photo set exported as a single file.
  • Keep the original file until you have opened the protected version successfully.
  • Switch to Folder Encryptor when you catch yourself locking multiple files one by one.

Best when one image or one PDF needs a simple lock step

Not every file needs a full vault workflow. Sometimes you only want to protect one image or one PDF before storing it or sending it onwards. This page is designed for that smaller, easier job.

  • Protect one file at a time with a password
  • Works well for personal PDFs, scans and image files
  • Unlock the protected file later on the same page

So verwendest du dieses Tool

  1. Choose one image or PDF and enter a password.
  2. Create the protected .mlock file and save it.
  3. Use the unlock section later with the same password to recover the original file.

Wann diese Seite nützlich ist

  • One private document that should be protected before sharing
  • A scan, statement or image file you want to store in a locked copy
  • Simple one-file protection without a larger archive workflow

Was du vor dem Herunterladen prüfen solltest

  • You cannot recover the original file without the correct password.
  • This page is best for one file at a time. Use Folder Encryptor when several files belong together.
  • Protected file size will usually be a little larger than the original.

Datenschutzhinweis: The lock and unlock workflow is designed to happen locally in the browser with a password you choose.

Verwandte Tools für den nächsten Schritt

Öffne eine verwandte Seite, wenn die Aufgabe weitergeht, zum Beispiel nachdem du eine PDF verkleinert, Metadaten bereinigt oder eine Datei zum Teilen vorbereitet hast.

Image Compression PDF Compression Favicon Generator PDF Cover Extractor

Fragen, die Menschen vor dem Speichern des Ergebnisses meist haben

What kind of PDF jobs is Image / PDF Locker good for?

Image / PDF Locker is best for straightforward PDF tasks such as reducing file size, changing page order, extracting a cover page, or preparing a document for sharing.

Will my original PDF change?

No. The original file stays unchanged. The tool creates a new output file for you to review and download.

Who is this tool for?

It is practical for people sending PDFs by email, uploading documents to forms and portals, or cleaning up files before they are shared with clients, colleagues, or customers.