Guides & how-tos
Clear, practical walkthroughs for the jobs people use our tools for most.
How to Compress an Image to 100KB (or 50KB) Without Losing QualityStep-by-step guide to shrinking a photo to 100 KB, 50 KB or 20 KB for online forms, job portals and email — free, on your phone or PC, without uploading it.
How to Merge PDF Files on Your Phone or PC for FreeCombine several PDFs into one document on Android, iPhone, Windows or Mac — free, in your browser, without installing an app or uploading your files.
How to Remove the Background From a Photo for Free (Transparent PNG)Remove the background from product photos, portraits and logos in seconds with on-device AI, then save a transparent PNG or put the subject on white.
HEIC to JPG: How to Open iPhone Photos on Windows and AndroidWhat HEIC files are, why Windows and websites can’t open them, and how to convert iPhone photos to JPG for free — plus how to stop your iPhone saving HEIC.
How to Reduce PDF File Size for Online Forms and EmailPractical ways to get a PDF under 1 MB, 500 KB or 200 KB for job portals, admissions and email: compress, split, greyscale and fix scans the right way.
How to Make a WiFi QR Code and a WhatsApp QR Code (Free)Create a QR code that connects guests to your WiFi or opens a WhatsApp chat with your business — plus printing tips so it scans every time.
How to Create Strong Passwords You Can Actually ManageWhat makes a password strong, how long it should be, why reuse is dangerous and a simple system for managing unique passwords on every account.
What Is My IP Address? What It Reveals and How to Check ItA plain-English explanation of public and private IP addresses, IPv4 vs IPv6, what websites can learn from your IP, and how to check whether a VPN is working.
Marla and Kanal to Square Feet: 225 vs 272.25 ExplainedSquare feet in a marla and kanal in Pakistan: the 225 vs 272.25 sq ft standards, a ready plot-size table, and how to convert any plot size.
Photo and Signature Size for FPSC, PPSC and Online Job ApplicationsFit your photo, signature and CNIC to FPSC, PPSC and NTS upload limits: crop, resize and compress to 20–60 KB on your phone, free.
How to Make a PDF of Your CNIC and Documents on Your PhoneTurn photos of your CNIC and degrees into one PDF on your phone, shrink it for upload limits and add a safety watermark — free, nothing uploaded.
USD to PKR for Freelancers: Rates, Fees and What You Really GetWhy Google’s dollar rate isn’t what you receive: interbank vs bank rates, platform and withdrawal fees, PRC, and your real PKR earnings.
US Passport & Visa Photo Size: 2x2 Inches, 600x600 PixelsOfficial US passport and visa photo rules: 2x2 inch prints, 600–1200 px square JPG under 240 KB, head size and background — and how to make one free.
UK Passport Photo Size: Digital (600x750) and Printed (35x45mm)Official UK passport photo rules for online and paper applications: 600x750 px minimum, 50 KB–10 MB, 35x45 mm prints, glasses and common rejections.
How to Open and Convert HEIC Photos on Windows 11 and 10iPhone photos showing as .heic on your PC? Three ways to open them on Windows 11 and 10, and how to convert them to JPG free, with no install.
Canada Passport Photo Size: 50x70mm Rules and Online RenewalCanadian passport photo rules: 50 x 70 mm prints, 31–36 mm head, the stamp on the back, and online renewal specs (1200x1800 px, 200 KB–5 MB).
Australian Passport Photo Size and Dimensions (35–40 x 45–50mm)Official Australian passport photo dimensions: 35–40 mm wide, 45–50 mm high, 32–36 mm face, plus background, glasses and print quality rules.
YouTube Thumbnail Size (2026): Dimensions, File Size and FormatYouTube thumbnail size: 16:9, recommended 3840x2160, minimum 640 px wide, JPG or PNG, 2 MB on mobile, 50 MB on desktop, plus Shorts sizes and tips.
How to Compress Images in PowerPoint (Windows and Mac)Make a PowerPoint file smaller by compressing its pictures: step-by-step for Windows and Mac, which resolution to choose, and how to shrink photos before inserting them.
How to Compress an Image on a Mac (Preview, Finder, Photos)Three built-in ways to reduce image file size on a Mac — Preview, Finder Quick Actions and Photos — plus how to compress a photo to an exact size like 100 KB.