Guides

Plain-English guides to the jobs our tools help with: PDFs, images, passwords, networks, code and money in the UAE.

PDF Tools

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How to Make a PDF Smaller (and Why Some PDFs Won't Shrink)What makes a PDF large, why scanned and photo-heavy PDFs barely shrink, and the practical fixes that actually cut the size for email and upload forms.How to Merge and Split PDF Files Without Uploading ThemMerge, split and rotate PDFs in your browser without uploading them. Page range examples, tips for getting the page order right and fixing sideways scans.How to Turn PDF Pages into JPG or PNG ImagesTurn PDF pages into JPG or PNG images in your browser. When to pick each format, what resolution to use, and tips for WhatsApp, slides and upload forms.

Image Tools

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JPG vs PNG vs WebP: Which Image Format Should You Use?JPG, PNG and WebP compared: lossy vs lossless, transparency, browser and app support, a side-by-side table and the best format for photos, logos and forms.How to Resize and Compress Images for Websites, Email and FormsResizing vs compressing explained, with sensible image sizes for websites, email and upload forms, plus steps to get a photo under a KB limit in your browser.How to Remove a Background from a Photo: Tips for Clean ResultsPhoto tips for clean background removal, what a colour-based remover can and can't do, and how to save as PNG or WebP or add a white background.

Security Tools

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How to Create a Strong Password in 2026Why length beats complexity, how to build a passphrase, use a password manager and passkeys, and what the latest NIST password guidance actually says.What Is a Hash? SHA-256 and File Checks Explained SimplyWhat a hash is, how to check a download's SHA-256 checksum on Windows, macOS and Linux, why MD5 and SHA-1 are broken, and why hashing is not encryption.QR Codes: How They Work and How to Make One That Always ScansHow QR codes store data, what error correction does, the size, contrast and quiet zone rules for reliable scans, static vs dynamic codes, and QR scam risks.

IT Tools

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What Is My IP Address? IPv4 vs IPv6 ExplainedPublic vs private IP, IPv4 vs IPv6, why your IP location is only approximate, and how to find your local IP address on Windows, macOS and phones.DNS Records Explained: A, AAAA, CNAME, MX, TXT and MoreWhat each DNS record type does, with real examples, how TTL really works, SPF, DKIM and DMARC, and how to fix sites and email that stop working.How to Check if a Port Is Open (and What the Results Mean)Test a TCP port from inside and outside your network, read open, closed and timeout results, and fix port forwarding and CGNAT issues safely.Subnetting Made Simple: CIDR, Subnet Masks and Usable HostsCIDR and subnet masks explained with a /24 to /32 cheat sheet, a worked example splitting 192.168.10.0/24, wildcard masks and private IP ranges.

Developer Tools

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JSON Explained: How to Format, Validate and Fix Common ErrorsJSON syntax rules in plain English, the mistakes that break it (trailing commas, single quotes, comments), formatted vs minified JSON, and how to fix them fast.Base64, URL Encoding and JWTs: What They Are (and Why They're Not Encryption)A plain-English guide to Base64, URL percent-encoding and JSON Web Tokens, with worked examples, exp and iat explained, and why decoding a JWT is not verifying.

Finance Tools

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UAE VAT Explained: How to Add or Remove 5% VATHow UAE VAT works: the 5% rate, formulas to add VAT or remove it from a VAT-inclusive price, AED examples, registration thresholds and rounding tips.Profit Margin vs Markup: Formulas, Examples and Common MistakesMargin and markup use the same profit but divide by different numbers. Formulas, a conversion table, AED examples and why VAT stays out of the calculation.

UAE Tools

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How UAE End-of-Service Gratuity Is CalculatedHow UAE private-sector gratuity works under Decree-Law 33 of 2021: 21 and 30 days of basic pay per year, part years, the two-year cap and a worked example.Renting in Dubai: The Real Costs to Budget ForWhat renting in Dubai really costs: cheques, deposit, agent fee, Ejari, DEWA deposit, the 5% housing fee and rent increase rules, with a worked example.Why 1 US Dollar Is Always 3.6725 AED (and How to Convert Currencies)The UAE dirham has been pegged to the US dollar at 3.6725 since 1997. What that means for conversions, bank rates, card fees and quick mental maths.

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