PDF Encrypt
PDFAdd password protection to PDF files. Set user password and owner password with permissions control. 100% client-side, no upload.
About PDF Encrypt
This PDF encryption tool uses pdf-lib to add password protection locally in your browser, supporting a user password (to open) and an owner password (to modify permissions). Permission controls include printing, copying, modification, and annotation per the PDF 1.7 specification. Encrypted PDFs cannot be viewed without the password, ideal for protecting contracts and sensitive reports.
How to Use
- Open the PDF Encrypt tool page
- Enter or paste your data into the input area
- View the real-time results and use the copy button to get the output
Use Cases
- Contract protection — Add an open password to commercial contract PDFs to prevent unauthorized viewing of terms and amounts.
- Report permission control — Set an owner password to disable printing and copying, allowing readers to view but not extract data.
- Resume privacy — Encrypt resume PDFs containing personal ID information, sharing the password only with recruiters.
- Financial file encryption — Add passwords to financial reports and bank statement PDFs for secure email transmission.
- Legal document protection — Encrypt legal letters and complaints, controlling view, print, and modify permissions.
FAQ
What is the difference between user and owner passwords?
The user password opens and views the document; the owner password modifies permission settings. Only the owner password holder can change print and copy restrictions.
Can I still print after encryption?
It depends on permission settings. If printing is disabled during encryption, the document cannot be printed even when opened. Low-quality printing can be allowed separately.
What if I forget the password?
Passwords cannot be recovered. PDF encryption uses strong algorithms; the tool does not store passwords or provide cracking. Keep your password safe.
Does encryption affect PDF quality?
No. Encryption only modifies the PDF security dictionary and permission flags without changing content, image quality, or text formatting.
Are files and passwords uploaded?
No. All encryption runs locally via pdf-lib; files and passwords never leave your device, safe for confidential documents.
Comments
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