How to Reduce PDF Size for Online Forms (50KB, 100KB, 200KB Guide)

Step-by-step instructions to prepare your scanned marksheets, Aadhaar card, and certificates so online application portals accept them on the first try.

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Standard PDF Size Limits on Major Application Portals

Most Indian and international online application portals enforce strict file size caps: Single-page ID proofs and category certificates usually require 50 KB to 100 KB, while multi-page marksheets and gazetted documents require 100 KB to 300 KB.

3 Rules for Scanning Documents from Your Mobile Phone

1. Crop out background tables or bedsheets before converting to PDF so bytes are not wasted on background textures. 2. Shoot in bright daylight without flash glare. 3. Use our JPG to PDF Under 100KB tool or Compress PDF to 100KB tool so the output lands between 75 KB and 98 KB—clear and readable, yet safely below the 100 KB cap.