Protect PDF files online with secure 128-bit PDF encryption. Add password protection to PDF documents, lock confidential files, and prevent unauthorized access, copying, editing, and printing — free, instant, and completely browser-based.
All PDF encryption and password protection happen inside your browser — your PDF file is never uploaded to any server.
Secure PDF documents online with password protection, encryption, and permission controls — all processed privately inside your browser.
Protect PDF files using 128-bit RC4 PDF encryption built into the official PDF specification — supported by Adobe Acrobat, Chrome, Foxit, and all major PDF readers.
Add a secure password to your PDF so only authorised users can open, read, and access confidential documents online.
Restrict PDF printing, copying, and editing permissions independently while still allowing recipients to view the document normally.
Protected PDF documents require the correct password in Acrobat Reader, Chrome PDF Viewer, Foxit Reader, and mobile PDF apps.
Encrypt and password protect PDF files directly from Android, iPhone, tablet, or desktop — no software installation needed.
All PDF encryption happens locally inside your browser. No file uploads, no cloud processing, and no server-side storage of your documents.
Contracts, invoices, medical records, and legal documents — EasyToolkit processes your PDF entirely in your browser. Nothing ever leaves your device.
All encryption runs inside your browser tab using our built-in RC4 engine. Your PDF is never transmitted to any server.
Closing the tab removes all data from memory instantly. Nothing is logged, cached, or stored anywhere.
Your PDF content is never shared with any external service, analytics platform, or advertiser.
Completely anonymous. No email, no registration, no profile linked to your protected files.
No technical knowledge needed. Upload, set password, download.
Drag & drop or click to upload your PDF. The file is read locally — nothing is uploaded to any server.
Set your open password and choose which actions to allow (printing, copying, editing), then click Protect PDF.
Download your encrypted PDF immediately and share it with the password sent separately.
PDF is the most widely shared document format in the world — used for contracts, invoices, medical records, financial statements, and government filings. Without protection, anyone who receives or intercepts a PDF can read, copy, edit, print, or redistribute it freely. Adding a password encrypts the file's contents so it appears as unreadable data to anyone without the correct password.
According to the official Adobe PDF specification , password-protected PDFs use built-in encryption standards designed to control document access and permissions across supported PDF readers.
Most online PDF protection services upload your file to a remote server before encrypting it. That means your sensitive document passes through a third party's infrastructure — even if they claim to delete it afterwards. EasyToolkit's Protect PDF tool applies 128-bit PDF encryption entirely inside your browser using JavaScript-based processing. Your PDF content is never transmitted to any server, never logged, and automatically cleared from memory when you close the tab.
Browser-based PDF security is especially important for confidential documents containing financial records, personal identity information, legal agreements, healthcare data, or internal business reports where privacy and document control matter.