Secure your PDF with a password
BloomPDF makes it fast and completely private to process your documents directly in your web browser.
Upload the PDF you want to protect with a password.
Enter a strong password to lock the document.
Click 'Protect PDF' to apply encryption and save the protected PDF.
Unlike traditional cloud converters that require uploading your private files to remote servers or paying high monthly subscription fees, BloomPDF processes everything locally on your device.
| Feature | BloomPDF (bloompdf.app) | iLovePDF | Adobe Acrobat |
|---|---|---|---|
| Source Code Transparency | 100% Open Source (GitHub) | Closed Source (Proprietary) | Closed Source (Proprietary) |
| File Privacy | 100% Client-Side (No Uploads) | Uploaded to Cloud Servers | Uploaded to Adobe Cloud |
| File Size Limits | Unlimited | Limited on Free Plan | Quota Restricted |
| Pricing & Paywalls | 100% Free Forever | Freemium / Premium Tier | $19.99 / month |
| Account Required | No Registration | Optional / Recommended | Required Adobe ID |
BloomPDF uses industry-standard 128-bit and 256-bit AES encryption to lock your files.
No. Without the correct password, AES encrypted PDFs cannot be opened or read.