How Kalyvor keeps your files private
Encryption in transit, immediate deletion and what browser-side processing actually means.
4 min read
PDF securityFree
Unlock PDF
Remove a password you already know from a PDF, so it opens without one. We can't recover a lost password — only remove one you can already unlock the file with.
- ~3saverage
- 100 MBper file
- up to 10files per job
- Secure processing
- Auto-deleted when done
- No signup required
Drop your PDFs here
or choose them from your device — nothing is uploaded until you press the button.
- Supported formats
- File limit
- Up to 10 files
- Size limit
- Up to 100 MB per file · 5 GB with Pro
- Retention
- Deleted when the job finishes
Paste⌘VBrowse⏎
Encrypted in transit · never used to train models
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Why Kalyvor
Built for people who value their time
Every protect tool is fast, private and genuinely free — no dark patterns, no surprises.
Fast cloud processing
Jobs run on dedicated workers and finish in seconds — no queue, no spinner you can go make coffee to.
Auto file deletion
Everything you upload is erased the moment the job finishes. Nothing is written to long-term storage, so there is no retention period to wait out.
Works everywhere
Desktop, tablet or phone, any modern browser. Nothing to install, no plugins, no extensions.
Batch processing
Drop in a folder's worth of files and run the whole set through one tool in a single pass.
Privacy first
Encrypted in transit, never used to train models, never sold. Many tools never send the file at all.
No installation
Open a tab and go. No account needed to start, no download, no licence key to hunt for.
How it works
Unlock PDF in three steps
No account, no installation, no manual. It takes about as long to do as it does to read.
- 01
Add your files
Drag them onto the page, browse from your device, or paste straight from the clipboard.
- 02
Choose your settings
Adjust the options to taste — or leave the defaults, which are tuned for the common case.
- 03
Download the result
Your file is ready in seconds. We delete it from our servers the moment the job finishes, automatically.
Questions
Frequently asked questions
Everything worth knowing before you run your first Unlock PDF job. Still stuck? Talk to support.
Helpful articles
Guides and walkthroughs for getting more out of Unlock PDF.
Batch processing: run 100 files at once
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Getting started with Kalyvor
From first upload to finished download in under a minute — the whole flow.
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