Free PDF Protect Online - Fast & Private Web Utility
Lock a PDF with a strong password before you share it.
Runs entirely in your browser - your files are never uploaded
What is PDF Protect?
PDF Protect is a free, web-based utility designed for instant, local pdf tools tasks. It allows users to compute, format, convert, or edit data directly in their browser without installing software or registering an account.
- 100% Free & Unlimited Usage
- 0% File Uploads (100% Client-Side Privacy)
- Instant Real-Time Calculations
- Mobile, Tablet & Desktop Compatible
How to use PDF Protect
Select or Enter Input
Provide your source file or type your values into PDF Protect.
Configure Settings
Adjust parameters, formatting options, or units in real-time.
Get Instant Output
Download the final processed file or copy the generated output.
Features & Overview of PDF Protect
Encrypt a contract, invoice or report so only people with the password can open it. You can also set a separate owner password and switch off printing or copying.
Encryption runs on your device, so the document and the password never reach a server. Choose a long passphrase and share it through a different channel from the file itself.
Frequently Asked Questions about PDF Protect
Answers to common questions regarding PDF Protect features, data privacy, and usage.
Related PDF Tools
PDF Merge
Combine multiple PDF files into one ordered document.
Merge PDFsPDF Split
Extract a page range or split a PDF into single pages.
Split PDFPDF Compressor
Reduce PDF file size for email and upload limits.
Compress PDFWord to PDF
Turn a .docx document into a clean, shareable PDF.
Convert to PDFPDF to Word
Extract PDF text into an editable Word document.
Convert to WordPDF to Image
Export every PDF page as a high-quality JPG or PNG.
Extract Images