100KB Extension v1.1.1: Compress & resize files in 0ms directly in Google Chrome
Unlock password-protected PDF files and remove permission restrictions (printing, copying, editing) securely.
Password-protected or encrypted PDF documents cannot be processed by automated portal validation software, merged with other certificates, or compressed under target file size caps.
Our Unlock PDF tool parses PDF security dictionary objects and decrypts RC4 and AES encrypted streams locally in browser memory once you enter authorized credentials. It strips printing and copying restrictions, allowing you to save an unlocked PDF ready for seamless portal submission.
| PDF Standard | Stream Compression Engine | Target Size Ceiling | Font Subsetting | Portal Acceptance |
|---|---|---|---|---|
| PDF / A-1b (Scanned Certificates) | FlateDecode + Bi-Cubic Resampling (150 DPI) | 100KB – 300KB | Retained as Vector | 100% (UPSC, NTA, SSC, IBPS) |
| Standard PDF / 1.7 (Multi-Page) | Stream Dictionary LZ77 Deflate | 200KB – 1MB | Full Font Subsetting | 100% (USCIS, UKVI, IRCC) |
| High-Res Print PDF | Uncompressed Native Stream | 2MB – 10MB | Embedded TrueType | Requires Compression for Portal Caps |
Follow these simple steps to optimize and prepare your files secure:
Select your password-protected PDF document.
Provide the authorized password to decrypt the file streams.
Our WebAssembly engine strips security locks locally.
Save your unrestricted PDF document.
Find answers to common questions about our free online tools.
Lead WebAssembly Systems Engineer at 100KB Tools. Technical specifications researched and cross-verified against official ICAO Doc 9303 Part 9 standards, ISO/IEC 10918-1 JPEG specifications, and PDF/A ISO 19005 guidelines.
Compress PDF files to a target size secure. Optimize scanned documents and certificates with zero quality loss.
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