PDF Encrypt and Decrypt
Use PDF Encrypt and Decrypt
All GotoKit tools run directly online, no download required.
About this tool
Protect PDFs with AES-256 passwords or remove password protection from files you are allowed to unlock.
- Keeps original layout, tables and images
- Works on scanned documents — OCR friendly
- PDFs stay on your device, processed locally
- Free, no watermark, no usage limits
Compared with common PDF workflows
| Aspect | This tool | Typical alternative |
|---|---|---|
| Time to start | Open the page and start | Often needs installation or import |
| Lightweight tasks | Faster for conversion, compression, merging | More settings, but heavier workflow |
| Privacy | Prioritizes local or lightweight web flow | Depends on app and sync settings |
Docs
Protect PDFs with AES-256 passwords or remove password protection from files you are allowed to unlock.
Key Features
- AES-256 Encryption: Uses industry-standard AES-256 algorithm to encrypt PDFs with maximum security
- One-click Decryption: Remove PDF password protection by entering the correct password
- Privacy First: Passwords are only used during processing — never stored, never saved, never logged
- Auto Cleanup: Files are automatically deleted after processing, leaving no traces
- Cross-platform: Pure web-based tool, works in any browser without installation
How to Use
Encrypt PDF
- Select the “Encrypt PDF” tab
- Drag & drop a PDF file or click to upload
- Set and confirm a password (minimum 6 characters)
- Click “Encrypt & Download”
- Save the encrypted PDF
Decrypt PDF
- Select the “Decrypt PDF” tab
- Drag & drop an encrypted PDF file
- Enter the correct password
- Click “Decrypt & Download”
- Save the decrypted PDF
Use Cases
- Protect sensitive documents such as contracts and agreements
- Encrypt scanned personal ID documents
- Decrypt received password-protected PDFs
- Protect confidential business documents
Notes
- File size limit: 30MB
- Password length: 6-128 characters recommended; use a mix of uppercase, lowercase, numbers, and symbols
- Please remember your password — it cannot be recovered if lost
- Encrypted PDFs can be opened in any standard PDF reader
- Powered by professional PDF processing engine
Last verified: 2026-07-14
FAQ
Is this tool free?
Completely free, no usage limits, no signup required.
What encryption algorithm?
AES-256 industry-standard encryption for maximum security.
Is my password saved?
No. Password is only used in memory — never stored, never logged.
Can I recover a lost password?
No. For security, passwords are never stored and cannot be recovered. Keep your password safe.
What file size is supported?
Up to 30MB per file.
How can I process a scanned PDF without obvious quality loss?
Start with the original scan, avoid repeated recompression, and enable any image- or OCR-friendly mode when available. After processing, preview text edges, tables, and image detail before exporting the final PDF.
Is this tool suitable for preparing PDF files for email attachments?
Yes. Email-ready PDFs usually need the right balance of file size, compatibility, and loading speed. Compress or convert first, then confirm fonts, margins, images, and page count still look correct.
What is the difference between this online PDF tool and desktop software?
Online tools are usually faster for one-off tasks and lightweight workflows because there is nothing to install. Desktop software is stronger for batch automation, complex layouts, and enterprise pipelines. For quick conversion, compression, merging, and export, online is usually the fastest path.
Do I need to sign up, download, or install anything?
Most Gotokit tools are designed to open directly in the browser without a separate install. If a tool has a quota, browser requirement, or third-party dependency, the page copy will state that clearly.
More from PDF Convert
All PDF Convert toolsPDF to Word Converter
Convert PDFs to editable Word documents while preserving paragraphs, tables, and images, and also export Office files to PDF.
PDF Watermark
Add custom text watermarks to PDFs with adjustable font size, color, opacity, rotation, and position. Tile mode for repeating watermarks.
PDF Compressor
Reduce PDF file size with adjustable compression levels while keeping text readable and images usable.
Image to PDF Converter
Turn JPG, PNG, WebP, BMP, and GIF images into one PDF with drag-to-reorder, fit modes, page size, and margins.
PDF Merger
Combine multiple PDF files into one document, reorder them visually, and export a merged PDF with a custom filename.
PDF Splitter
Select the PDF pages you want to keep, remove the rest, and export a clean new PDF with page-grid controls.
PDF to Image Converter
Convert every page in a PDF to high-resolution PNG or JPG images with thumbnail preview, ZIP download, and DPI controls.