Insights
Short, practical, fact-checked explanations of the jobs our tools help with, each linked to a free tool you can use straight away.
- 31 articles
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- Updated regularly
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PDFHow to merge PDF files into one document (Windows, Mac and phone)Combine several PDFs into a single file on Windows, Mac, iPhone or Android without installing software, keep pages in the right order and keep the file small.Read the article
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PDFHow to split a PDF or extract pages (without uploading it)
Extract one page, a range of pages or every page of a PDF as separate files. Page-range syntax explained, plus how to remove pages instead.
ImagesHow to convert iPhone photos (HEIC) to JPG on Windows
Why iPhone photos arrive as .HEIC files on Windows, three free ways to turn them into JPG, and the iPhone settings that send JPG automatically.
PDFHow to convert a PDF to JPG images at the right quality
Turn PDF pages into JPG or PNG images for social posts, slides or uploads. Which resolution (DPI) to choose, JPG vs PNG, and pixel sizes for A4 pages.
MarketingHow to make a QR code that scans every time
Create a free QR code for a link, Wi-Fi or contact card, choose the right error correction and print size, and avoid the mistakes that stop codes scanning.
PDFHow to edit text in a PDF, and why it is harder than in Word
Change words, fix typos, fill in forms and add text to a PDF in your browser. Why PDFs are hard to edit, how fonts are matched and what to do with scanned PDFs.
DevelopersInvalid JSON? The 9 most common errors and how to fix them
Trailing commas, single quotes, comments, unquoted keys and other reasons JSON fails to parse, with before and after examples and how to find the exact line.
Everyday mathsHow to calculate percentages: 6 everyday examples
The three percentage formulas you actually need, worked examples for discounts, tips, marks, salary rises and price changes, and the mistakes to avoid.
Everyday mathsHow to calculate your exact age in years, months and days
Work out an exact age from a date of birth, by hand or instantly. How months of different lengths and leap years affect the result, with worked examples.
MoneyHow loan EMI is calculated, with worked examples
The EMI formula explained step by step, how much of each payment is interest, what a 1% rate difference really costs, and how prepayment shortens a loan.
ImagesHow to watermark your photos (and what a watermark can’t do)
Add a text or logo watermark to photos and PDFs, choose placement and opacity that deter copying without ruining the image, and understand your copyright.
WritingHow many words is that? Word counts for pages, posts and reading time
How many words fit on a page, how long a text takes to read or say aloud, and the character limits for titles, meta descriptions and popular social platforms.
BusinessUAE tax invoice requirements: what a VAT invoice must show (and what changes with e-invoicing)
What a UAE VAT tax invoice must include, when a simplified invoice is allowed, AED amounts on foreign-currency invoices, and the 2026–2027 e-invoicing timeline.
ImagesHow to extract text from an image: getting accurate OCR results
How optical character recognition works, how to photograph or scan documents for accurate results, and how to copy text from screenshots, photos and PDF scans.
Audio & videoHow to record your screen on Windows, Mac, iPhone and Android (free)
Free, built-in ways to record your screen on Windows 11, macOS, iPhone and Android, plus how to record from your browser with sound and no watermark.
BusinessUAE gratuity explained: how end-of-service benefits are calculated
How end-of-service gratuity works under UAE Labour Law: 21 and 30 days’ basic pay per year, the two-year cap, resignation, unpaid leave and worked examples.
BusinessMargin vs markup: the pricing mistake that quietly eats your profit
The difference between profit margin and markup, the formulas, a conversion table, and how to set prices that hit your target margin, with worked examples.
MarketingWhatsApp click-to-chat links: how to get more customer messages
How wa.me links work, where to place them, how to pre-fill messages and use QR codes, plus etiquette and rules that keep your WhatsApp Business number safe.
PDFHow to make a PDF small enough to email (without uploading it anywhere)
Why PDFs get too big for email, and five ways to shrink them: compression, splitting, lower-resolution scans, re-exporting and sharing links. Step by step.
ImagesHEIC vs JPG: what is the difference, and which should you use?
HEIC files are about half the size of JPGs at similar quality, but many apps cannot open them. When to keep HEIC, when to convert, and how to stop it.
CalculatorsUAE VAT explained: how to add and remove 5% VAT correctly
How to calculate 5% UAE VAT: adding VAT to a price, extracting VAT from a VAT-inclusive total, common mistakes and the registration thresholds. With examples.
CalculatorsFlat rate vs reducing rate: why the same "4%" loan can cost twice as much
Car and personal loans are often quoted at a flat rate that looks cheap. See how flat and reducing-balance interest compare, with worked examples.
PDFElectronic signatures explained: when a signed PDF is enough
The difference between simple electronic signatures and certificate-based digital signatures, what UAE, EU and US laws recognise, and how to sign a PDF safely.
SecurityWhat makes a password strong in 2026 (and what no longer matters)
Current, evidence-based password advice: length beats complexity, use a password manager, never reuse passwords, and turn on two-factor authentication.
SEOSchema markup for small businesses: a practical, no-jargon guide
What structured data is, which schema types a small business actually needs, how to add JSON-LD to your site, and the mistakes that get markup ignored.
SEOGEO: how to make your content easy for AI search to find and cite
How AI answers in Google, ChatGPT, Perplexity and Bing choose sources, and what you can control: crawl access, clear answers, structure and trust.
SEOHow to block (or allow) AI crawlers with robots.txt
Which user agents AI companies use, how to block training crawlers while staying in AI search, ready-made robots.txt rules, and what robots.txt cannot do.
ImagesSocial media image sizes: a practical cheat sheet
Recommended image sizes and aspect ratios for Instagram, Facebook, LinkedIn, X and YouTube posts, stories, link previews and thumbnails.
ImagesHow to make images smaller for a website without making them look worse
A practical guide to image size for websites: choosing dimensions, JPEG vs WebP vs PNG, quality settings that look the same, and checking the result.
PrivacyWhat your photos reveal: EXIF metadata explained, and how to remove it
Photos can contain the exact GPS location, date and device they were taken with. What EXIF, XMP and IPTC data contain, who can see it, and how to strip it.
SEOWriting title tags and meta descriptions that do not get cut off
How Google decides where to cut titles and descriptions, practical length targets, and a simple formula for writing search snippets people click.
Topics: PDF, Images, Marketing, Developers, Everyday maths, Money, Writing, Business, Audio & video, Calculators, Security, SEO, Privacy.