Secure & archive · quick answer
What Protect PDF does
Protect PDF is a browser-based Filozy tool built for this task: AES-256 password and permissions, set in your browser. It runs on this device, creates a separate result, and does not require an account or document upload.
Use Protect PDF to choose one PDF plus a password, apply AES-256 encryption and document permissions. The password is used locally and is never sent anywhere, but losing it can make the protected copy impossible to open. Filozy starts the document engine only after you choose a file, performs the work inside this tab, and creates a new result for you to save. Your selected document, its filename, and its contents are not sent to Filozy.
How to protect pdf in your browser
- Choose one PDF plus a passwordSelect one PDF plus a password from the dropzone. Filozy reads it locally and shows the relevant preview or controls before changing anything.
- Review the settingsUse the page preview and available options to decide exactly how protect pdf should handle this document.
- Create and check the resultRun the tool, review the reported page count, size, or notes, then save the newly created file while keeping the original.
Before you start
- Work on a copy and keep the untouched original in a safe location.
- Confirm that you are authorized to remove protection, redact information, or sign the document.
- Understand whether the result is a visual mark, access control, permanent removal, or archival conversion.
Limits worth knowing
- The result depends on the structure and quality of the source document, so visually inspect the exported file before relying on it.
- Browser memory varies by device. Very large or unusually complex PDFs may work better when processed in smaller groups.
Frequently asked questions
What is Protect PDF used for?
Protect PDF is a browser-based Filozy tool built for this task: AES-256 password and permissions, set in your browser. It runs on this device, creates a separate result, and does not require an account or document upload.
Can I use Protect PDF on a phone or tablet?
Yes. Protect PDF works in a current mobile browser. Complex PDFs can need more memory, so keep the tab open, avoid switching apps during processing, and inspect the result before closing the page.
Does Protect PDF upload my file?
No. The selected file is opened and processed by code running in this browser tab. Document bytes and filenames are not sent to Filozy.
Will this change my original file?
No. Browsers cannot silently overwrite the file you selected. Filozy creates a separate result for you to save or pass to another local tool.
What should I check after using Protect PDF?
Check the visible preview and the result summary. The password is used locally and is never sent anywhere, but losing it can make the protected copy impossible to open. Keep the original until the new output has been opened and verified.
Do I need an account or subscription?
No account is required for this browser-side tool. It runs on the device and does not use a document-upload allowance or daily server quota.