Lock & Unlock PDF Online Free
Permanently remove passwords from e-Aadhaar, bank statements, and tax slips for print or govt portal uploads. Or protect sensitive files with military-grade AES-256 encryption — 100% inside your browser.
Drop your password-protected PDF here
Or click to browse. Supports e-Aadhaar, SBI, HDFC, ICICI, EPFO, Form 16, and salary slips up to 150MB
More Powerful PDF & Document Tools Built for Your Workflow
Stop paying for expensive Adobe subscriptions or risking citizen identity documents on insecure cloud servers. Explore our full suite of 100% in-browser utilities designed for cyber cafés, CSC centers, and government job aspirants.
PDF Compressor Studio
Compress your unlocked PDF down to exact 50KB, 100KB, 200KB or 300KB for SSC, UPSC, NTA NEET, and IBPS online forms. Includes grayscale and text sharpening.
- Exact custom KB target input
- Monochrome & clean scanner filters
- Lossless text readability preservation
Smart ID Sheet Maker
Crop unlocked e-Aadhaar, PAN, and Voter cards to exact ISO 7810 ID-1 standard dimensions (85.6 × 53.98mm) and arrange up to 5 cards on A4 for zero-waste printing.
- Automatic corner and contour detection
- Front & Back side-by-side alignment
- 300 DPI high-resolution PDF print sheet
KYC Card Combiner
Combine separate front and back scans of Aadhaar, Voter ID, or Driving License onto a single page PDF or JPEG document for seamless KYC portal submission.
- Side-by-side or vertical stacked layout
- Standard A4 document margins
- Instant 1-click single PDF export
Passport Photo Studio
Create professional passport photo sheets (35×45mm, US Visa 2×2", SSC/UPSC) with white/blue backgrounds and custom Name & Date stamps ready to print.
- 8 photos on 4R (4×6) or 36 photos on A4
- Biometric eye-level alignment grid
- Print-ready 300 DPI PDF with cut-guides
AI Camera Document Scan
Turn your smartphone or laptop webcam into a flatbed scanner with live green edge detection, automatic perspective straighten, and multi-page PDF generation.
- Real-time quadrilateral corner tracking
- Shadow removal & magic color enhancement
- Direct multi-page PDF export
Signature Resizer & KB
Crop paper signatures, turn gray backgrounds pure white, change ink to deep blue or solid black, and compress to exact 10KB–20KB for online exam forms.
- Exact pixel dimension presets (140×60, etc.)
- Ink color changer & shadow cleanup
- Guaranteed target file size under 20KB
Frequently Asked Questions
Why do government portals reject password-protected PDFs?
Portals like SSC, UPSC, NTA, state public service commissions, and bank loan verification systems use automated background parsers. These automated parsers cannot enter passwords and will immediately reject protected files. Unlocking your PDF first ensures instant automated verification without rejection.
What is the password formula for UIDAI e-Aadhaar?
The official UIDAI e-Aadhaar password is an 8-character code: the first 4 letters of your name in CAPITAL LETTERS followed by your 4-digit Year of Birth (YYYY). For example, if your name is ANISH KUMAR and year of birth is 1989, your password is ANIS1989.
Is it safe to unlock bank statements and Aadhaar here?
Yes, 100%. Unlike conventional online PDF converters that upload your confidential documents to unknown remote servers, KYC Studio India runs WebAssembly (QPDF) entirely inside your computer or phone browser RAM. Your files and passwords never leave your machine.
Will unlocking remove or blur my document's text or QR codes?
Not at all. Our engine performs native cryptographic decryption on the PDF object streams without converting pages to low-resolution images. All text, fonts, vector curves, barcodes, and QR codes remain 100% vector-sharp and original.