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Military-grade AES-256 encryption — the same standard used by banks and governments. Your PDFs are truly secure.
Control what recipients can do — allow or block printing and text copying. Fine-grained access control.
Protect up to 10 PDFs at once. No signup, no watermarks, no limits. 100MB per file, completely free.
Filator's free PDF protector adds AES-256 encryption to your PDF files — the same standard used by banks and governments. Unlike iLovePDF (limited free protections, 15MB limit), Smallpdf (daily task limits), and Adobe (paid subscription required), Filator offers 100MB per file, batch protection of 10 files, and zero restrictions.
The strongest encryption available for PDFs. AES-256 is the same standard used by military and financial institutions. Some competitors only offer AES-128 or weaker RC4.
Control what recipients can do with your PDF. Allow or block printing and text copying. Set restrictions beyond just a password.
Protect up to 10 PDFs at once with the same password. Most free tools limit you to 1 file per session. Filator processes files in parallel.
Protect PDFs up to 100MB each — far beyond iLovePDF's 15MB free limit and most competitors that restrict file sizes to 5-50MB.
Drag and drop PDF files into the upload area, or click to browse. Up to 10 files, 100MB each.
Enter and confirm your desired password. Optionally expand "Advanced Settings" to control printing and copying permissions.
Hit "Protect PDFs" to encrypt your files with AES-256. A progress bar shows real-time status.
Download each protected PDF individually or use "Download All" for batch downloads. Files now require the password to open.
| Feature | Filator | iLovePDF | Smallpdf | Adobe |
|---|---|---|---|---|
| Encryption | AES-256 | AES-128 | AES-128 | AES-256 |
| File Size Limit | 100MB | 15MB (free) | Limited | Paid only |
| Batch Files | 10 files | 1 (free) | 1 | 1 |
| Permission Controls | Print + Copy | None (free) | None | Full (paid) |
| Price | Free | $7/mo for Pro | $9/mo for Pro | $12.99/mo |
Password-protect contracts, financial reports, or legal documents before sharing via email. Only recipients with the password can open them.
Encrypt proposals, designs, or reports before sending to clients. Add print restrictions to prevent unauthorized distribution.
Protect tax returns, medical records, or ID copies stored on your computer or cloud storage. AES-256 encryption keeps them safe.
Password-protect unpublished research, thesis drafts, or exam papers before sharing with reviewers or committee members.
Upload your PDF to Filator, enter your desired password (and confirm it), then click Protect. Your PDF will be encrypted with AES-256 and require the password to open. Download the protected file and share it securely.
Yes, completely free with no hidden costs. Unlike Adobe (paid subscription) or iLovePDF (limited free uses), Filator lets you protect PDFs up to 100MB with AES-256 encryption, no signup, and no watermarks.
Filator uses AES-256 encryption — the strongest available for PDF files. This is the same standard used by banks, governments, and military organizations. Some free competitors only offer weaker AES-128 or RC4 encryption.
Yes. Upload up to 10 PDFs, set one password, and protect them all at once. Most competitors restrict batch protection to paid plans.
Yes. Expand the "Advanced Settings" section to toggle printing and text copying permissions. By default, printing is allowed and copying is blocked.
Yes. The protected PDF works with all standard PDF readers — Adobe Acrobat, Preview (Mac), Chrome, Edge, Firefox, and any PDF app on mobile devices.
Yes. Your files are processed on our servers and automatically deleted after download. We never store, share, or access your documents. Your password is not logged or stored on our servers.
Each PDF can be up to 100MB. This exceeds iLovePDF's 15MB free limit and most competitors that cap at 5-50MB. No premium subscription needed.
Add AES-256 password protection to your PDF files instantly — no signup, no file size restrictions, and no watermarks. Scroll up and drop your first PDF to get started.
Add password protection to your PDF files with AES-256 encryption