Kodotools Blog
Guides, tips &
how-tos.
Practical walkthroughs on loan payments, image compression, CV writing, QR codes, and navigating government portals.
Share WiFi password with a QR code
How WiFi QR codes work on iPhone and Android — without uploading your password anywhere. One scan, guests are connected.
All articles
33 articlesWhat is EMI? Meaning, formula, and loan example
Understand equated monthly installments, payment math, reducing versus flat interest, APR, and the factors that change EMI.
Read guide →What is an amortization schedule? Meaning and example
Learn how to read principal, interest, balance, extra payments, and payoff timing in a loan amortization schedule.
Read guide →How to pay off a loan early: 6 strategies that work
Compare biweekly payments, extra principal, lump sums, refinancing, and payoff calculator strategies before sending extra money.
Read guide →How much house can I afford? 28/36 rule guide
Use income, debts, down payment, DTI, taxes, insurance, and hidden home costs to estimate a realistic buying budget.
Read guide →Share WiFi password with a QR code
How WiFi QR codes work, how to create one safely in your browser, and tips for guests on iPhone and Android.
Read guide →QR codes for small business — 10 practical uses
Menus, contacts, WhatsApp links, PDF downloads, and print-friendly materials for your business.
Read guide →How to create a QR code for free
Choose the right type, keep data clean, export PNG, JPG, or SVG.
Read guide →How to make a QR code in Canva, Adobe, or free
Canva and Adobe Express steps, a faster free way, and Facebook QR codes.
Read guide →QR code size guide for print
Minimum sizes for cards, flyers, and posters.
Read guide →vCard QR code guide
Digital business card QRs that import cleanly on Android and iPhone.
Read guide →QR code design tips
Contrast, logos, and quiet zone — keep custom codes scannable.
Read guide →JPG to PDF size guide: hit any KB target
How PDF file size works, which KB limit each form needs, and a free tool for 30KB to 500KB.
Read guide →How to make an A4 PDF from JPG images
Fit photos to a real A4 page, merge multiple JPGs, and set orientation and margins.
Read guide →JPG vs PNG: which image format should you use?
Photos, screenshots, transparency, upload forms, and when to convert between formats.
Read guide →WebP vs PNG: which format is better?
Website speed, editing support, transparency, and when to convert WebP to PNG or JPG.
Read guide →How to convert images online without uploading
A private browser-only workflow for JPG, PNG, WebP, HEIC, SVG, and strict upload limits.
Read guide →How to resize an image without losing quality
Crop vs fit, JPEG export, Instagram and WhatsApp sizes, and when compression matters after resizing.
Read guide →Facebook cover photo size guide
Cover dimensions, mobile-safe areas, JPG vs PNG, and how to keep wide banner graphics readable.
Read guide →YouTube thumbnail size guide
1280×720 dimensions, title-safe layouts, crop choices, and export tips for sharper video thumbnails.
Read guide →LinkedIn profile photo size guide
Square dimensions, circle-safe crops, and simple export choices for professional profile photos.
Read guide →PPSC photo size guide — pixels, crops, and uploads
Resize images for Punjab Public Service Commission forms: square presets, fit modes, file-size limits, and common mistakes.
Read guide →FPSC photo size guide — federal commission uploads
Prepare photos for Federal Public Service Commission applications: dimensions, JPEG vs PNG, and pairing resize with compression.
Read guide →NADRA photo requirements 2025
CNIC, NICOP, and FRC specs — dimensions, 100KB limit, white background, JPG format.
Read guide →Passport photo size guide - countries, pixels, and print sizes
Compare Pakistan, US, UK, Canada, 2x2, and 35x45 photo sizes with official source links and tool presets.
Read guide →DGIP passport photo size — 350 x 467 pixels
Pakistan online passport photo size, JPG format, white background, 3MB limit, and crop advice.
Read guide →How to compress image for PPSC
25KB and 600×600 workflow — resize, compress, and upload for Punjab commission forms.
Read guide →How to reduce photo to 100KB
Exact KB targeting for forms that say “reduce photo size to 100KB” — free, in-browser.
Read guide →WhatsApp DP size 2025
Profile photo, status, and group icon pixel sizes — plus a free resizer.
Read guide →How to compress an image under 100 KB
Step-by-step for NADRA, FBISE, and government portals with strict upload limits.
Read guide →Compress a passport or ID photo for portals
Meet visa, NADRA, and passport office file size requirements without losing quality.
Read guide →Resize a photo for a job application
How to compress your headshot or profile photo for employer portals and online forms.
Read guide →How to write an ATS-friendly resume
Format, keywords, and structure tips that get your CV past automated screening software.
Read guide →Resume bullets that actually get read
How to write achievement-first bullet points with numbers that make recruiters stop scrolling.
Read guide →Free CV maker with no signup — does it exist?
Yes. Here's what to look for in a genuinely free CV tool — and why most "free" builders aren't.
Read guide →