Guides
Clear, step-by-step answers to everyday questions — each one paired with a free tool so you can do the job straight away.
- How to Compress a PDF for Email (Without Ruining the Quality)PDF too big to email? Learn why PDFs get large, how to shrink one below 20–25 MB attachment limits for free, and how to keep text and photos sharp.4 min read
- How to Merge PDF Files Into One (Free, No Software)Combine several PDFs into one document in seconds. Step-by-step guide to merging PDFs for free, putting pages in order and removing the ones you don’t need.3 min read
- How to Remove a Password From a PDF You OwnTired of typing a password every time you open a PDF? Learn how to remove PDF password protection for free when you know the password, and when you shouldn’t.3 min read
- How to Convert a PDF to an Editable Word DocumentTurn a PDF into an editable Word document for free. What converts well, what doesn’t, and how to handle scanned PDFs with OCR so you can edit the text.3 min read
- How to Sign a PDF Online (Without Printing It)Add your signature to a PDF in under a minute: draw, type or upload it, place it on the page and download. Free, private and no printer or scanner needed.3 min read
- How to Turn Photos Into a PDF (JPG, PNG or iPhone Photos)Turn one photo or a hundred into a single PDF: choose page size and margins, put pages in order, and keep the file small enough to upload. Free and private.3 min read
- How to Save PDF Pages as JPG or PNG ImagesSave PDF pages as images for websites, slides and upload forms. When to choose JPG or PNG, which resolution to pick, and how to convert only the pages you need.3 min read
- How to Fill In a PDF Form on Your Computer or PhoneType into fillable PDF forms, lock your answers, and complete scanned forms with no fields at all — without printing. Free, private, works on phones.3 min read
- How to Redact a PDF Properly (So the Hidden Text Is Really Gone)Black boxes aren’t always redaction. How to permanently remove names, account numbers and other details from a PDF, and how to check the result.3 min read
Images
- How to Reduce Image File Size Without Losing QualityMake photos smaller for email, websites and upload forms: when to resize, when to compress and when to switch to WebP — with free in-browser tools.3 min read
- How to Make a Passport Photo at Home (Free)Take a passport photo with your phone, crop it to the official size for Australia, the US, UK, EU, Canada or India, and print a 6×4 sheet cheaply.3 min read
- How to Convert HEIC to JPG (or PNG) — iPhone Photos That Open AnywhereiPhone photo won’t open or upload? Convert HEIC to JPG or PNG in your browser, in bulk, without uploading — plus how to make your iPhone save JPG instead.3 min read
- How to Remove a Background From a Photo (Plain Backgrounds, Clean Results)Remove a plain background from product photos, logos, signatures and portraits, and get a transparent PNG or a clean white background — free and private.3 min read
- Social Media Image Sizes: A Practical Cheat Sheet (and How to Resize Without Stretching)Recommended image sizes for Instagram, Facebook, LinkedIn, X, YouTube, TikTok and Pinterest — and how to crop to them without stretching or blurring.3 min read
Calculators
- How to Calculate Percentages: 5 Everyday FormulasThe five percentage formulas you actually need: X% of a number, what percent one number is of another, increase, decrease and discounts — with examples.3 min read
- How to Calculate GST: Add It, Remove It, and Common MistakesThe simple formulas for adding and removing GST, with Australian examples at 10% and how the same method works for New Zealand GST, UK VAT and other rates.3 min read
- How to Calculate Mortgage Repayments (and Pay Your Loan Off Faster)How mortgage repayments are calculated, with worked examples, 25 vs 30-year loans compared, and three proven ways to cut years and interest off your loan.3 min read
Everyday
- How to Create a QR Code for Free (That Never Expires)Make a QR code for a website, Wi-Fi network, email, phone number or contact card in seconds. Static vs. dynamic codes, printing sizes and mistakes to avoid.3 min read
- How to Create a Strong Password You Can Actually RememberWhat makes a password strong in 2026, why length beats complexity, how passphrases work, and how to manage dozens of passwords safely without reusing them.3 min read
- Word and Character Limits: A Complete Guide for Essays, Social Media and SEOHow many words for an essay, IELTS task or cover letter? Character limits for X, Instagram, SMS and Google titles — the numbers you need, in one place.3 min read
English
- IELTS Band Scores Explained: How Your Score Is CalculatedWhat each IELTS band means, how the overall score is rounded, how many correct answers you need in Listening and Reading, and how Writing is marked.3 min read
- CEFR Levels Explained: What A1, A2, B1, B2, C1 and C2 MeanThe six CEFR English levels explained: what you can do at each, how long each takes, how CEFR compares with IELTS, and how to find your level free.3 min read