100KB Extension v1.1.1: Compress & resize files in 0ms directly in Google Chrome
Compress PDF files to the exact limit required by UKVI secure. Optimize scanned documents and certificates with zero quality loss.
To ensure your document is accepted by the United Kingdom official platform, it must meet the following strict criteria:
Disclaimer: These requirements are verified based on official guidelines. However, platform rules and guidelines can change. Always consult the official UKVI portal before final submission.
UK Visas and Immigration (UKVI) requires applicants to upload various supporting documents, such as bank statements and employment letters. These multi-page PDFs often exceed the maximum allowable upload size. Our tool expertly compresses these files, reducing their footprint while maintaining the high resolution necessary for UKVI caseworkers to verify your details.
| 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 ensure your file meets all requirements for UKVI.
Select the PDF documents required for your UK visa application.
Choose a compression level that brings the file size below the UKVI threshold.
Retrieve your optimized file, perfectly sized for the UKVI upload portal.
Answers to common questions regarding requirements for UKVI.
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.
Convert JPG, JPEG, and PNG images into PDF files. Automatically scale and compress pages to fit under your desired limit.
Combine multiple PDF documents or certificates into a single file. Control order, sort pages, and optimize output size.
Split PDF documents by custom page ranges or extract specific pages securely with zero data leakage.