Guides & Tutorials
Practical, tested advice for preparing photos, signatures and documents for online applications
How-to guides
Step-by-step techniques for photos, signatures, scans and PDFs.
How to Scan a Signature Properly for Exam Upload
Get your signature right: hardware tips, lighting, and best practices for scanning or photographing signatures for exam portals.
Take an Exam Photo at Home: Light, Background, Framing
Where to stand, which light to use, how far away the camera should be and how to frame your face, so a photo taken at home passes the portal check first time.
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.
iPhone Photos Rejected? HEIC vs JPG and How to Fix It
Why application portals reject iPhone photos, how to convert HEIC to JPG in seconds, and the camera setting that stops the problem for good.
Understand the rules
What upload requirements mean and why files get rejected.
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.
How to Add Name and Date on an Exam Photo (the Right Way)
When exams ask for your name and "date of photo" on the photograph, what they usually expect, how to add it neatly, and mistakes that lead to rejection.
Exam-specific guides
Notes for exams with unusual photo, signature or document rules.
Comparisons
Differences that often confuse applicants.
Browse by Exam Category
Popular Topics
📐 Photo Dimensions
Different exams require different photo sizes. Learn how to resize your photo to the exact specifications.
Compare passport and exam photo requirements →🚫 Rejection Reasons
Understand why photos get rejected and how to avoid common mistakes that delay your application.
See common photo rejection reasons →✍️ Signature Guidelines
Many exams require signatures. Learn the right format and how to prepare your signature image.
Get signature scanning tips →🛠️ File Size
Each exam requires a specific file size range. Discover how compression works without losing quality.
Learn how KB, pixels and DPI relate →