01
Select document
Pick the PDF you want to secure. The file is loaded into browser memory for local processing.
Local password encryption
Protect PDF files with passwords.
Apply password protection before sharing a PDF.Set owner and open passwords and export encrypted output in a local browser workflow.
Workflow preview
Browser-based where supportedInput
One PDF
Runtime
Browser tab
Output
Encrypted PDF
Password-based PDF encryptionBrowser-based password handling50MB per fileNo file upload required
Local encryption workspace
Password-protect a PDF in your browser.
Inspect the PDF, set an open password, optionally set a separate owner password, and export encrypted output locally.
Browse PDF
Local encryption workflow: file inspection, password handling, encryption, and protected PDF export run in this browser session.
How to use Protect PDF
A clear browser-session workflow for protect pdf PDF work.
The interface should make the route visible: select files, perform the operation, and download the output from the same session.
02
Set security policy
Define your password and permissions. The encryption workflow runs on your device in your browser session.
03
Encrypt and download
The document is rewritten with encryption locally and prepared for direct download.
Why local processing matters
Compare the processing route before using sensitive documents.
DocuStitch labels supported workflows around the browser session rather than hiding the path behind a generic cloud promise.
DocuStitch supported workflow
- Files selected on device
- Operation runs in browser session
- Output downloads from the tab
Typical cloud workflow
- Files uploaded to remote queue
- Processing depends on server retention policy
- Output returned after transfer
How it works
Encryption should make password handling and output ownership clear.
Password handlingYour passwords are handled locally during the session to build the protected PDF export.
Local cryptographyEncryption logic runs locally in the browser using your device resources instead of a remote server.
Local export pipelineThe encrypted PDF is generated in browser memory and prepared for direct download.
Password encryptionLocal processingNo-log architectureLocal RAM
DocuStitch Security Core v4.2 - Local WebAssembly workflow - docustitch.app
Operator notes
Secure sensitive documents with local PDF encryption
Protecting sensitive documents such as tax returns, medical records, or legal contracts often starts with encryption. Many tools require uploading the original file before securing it. DocuStitch removes that dependency for standard workflows.
Protect PDF applies password-based PDF encryption while running locally in your browser session. Password handling and document processing stay on your device during use.
This local-first design reduces exposure to third-party processing services and keeps the route aligned with the capabilities currently implemented in the engine.
01
Local password protection
Apply local password-based PDF encryption without uploading the source file.
02
On-device cryptography
Encryption occurs in browser memory, so file and password stay local during processing.
03
No file upload
Standard encryption workflows can be completed without a third-party upload step.
04
Password control
Define owner and optional open passwords directly in the local workflow.
FAQ
Frequently asked questions
Everything you need to know about Protect PDF.
Will you store my password?
No. The workflow is designed to handle passwords locally during the session.
What happens if I forget my password?
Because passwords are not stored by DocuStitch, forgotten passwords cannot be recovered after the session.
What encryption level is used?
The current route uses local password-based PDF encryption. The page no longer claims granular reader permission enforcement that is not fully implemented in the engine.
Does it work for scanned PDFs?
Yes, it works with valid PDF documents including text-based and scanned files.
Knowledge hub
Return to workspace
Start processing in your browser.
Supported workflows run locally in your browser session, so you can finish document tasks without a cloud upload step.