Banking & Finance Exams Guides
Expert tips and tutorials for 12 exams
🛠️ Technical Tips
Reduce Photo Size in KB on Your Phone (Android & iPhone)
A step-by-step way to shrink a phone photo to 20KB, 50KB or 100KB for an online form without making it blurry — and why the obvious shortcuts fail.
How to Compress a PDF for an Online Application
Why certificate PDFs are too large, how to get them under 100KB, 200KB or 500KB, and how to keep the text readable when a portal has a strict limit.
How to Scan Documents With Your Phone for Government Forms
Get clean, readable, small scans of certificates, ID cards and marksheets using only your phone — lighting, framing, cropping and file-size tips.
💡 General Guidance
Exam Photo Rejected? 10 Common Reasons and How to Fix Each
Wrong pixel size, a file outside the KB range, HEIC instead of JPG, a sideways photo: 10 reasons portals reject photos and signatures, with a fix for each.
KB vs Pixels vs DPI: What Photo Upload Forms Check
Does 200 DPI change the KB? How many pixels is 3.5×4.5 cm? Which number does the portal check? KB, pixels and DPI explained with worked examples.