PDF Guides
How to Compress a PDF for Email (Without Making It Unreadable)
Email attachment limits explained, why some PDFs are so large, and a step-by-step way to shrink a PDF until it fits — plus what to do if it still won't.
6 min readRead
Guides & Tutorials
The QuickFileTools Blog
Clear, practical guides to everyday file tasks — shrinking PDFs for email, picking the right image format, converting iPhone photos, and keeping sensitive documents private.
- PDF Guides
- Image Guides
- Privacy & Security
Image Guides
HEIC vs JPG — How to Open and Convert iPhone Photos on Any Device
Why iPhones save photos as HEIC, which devices can open them, and the easiest ways to convert HEIC to JPG, PNG or WebP — or make your iPhone shoot JPG.
5 min readRead
Image Guides
JPG vs PNG vs WebP — Which Image Format Should You Use?
A practical comparison of JPG, PNG and WebP — how each format compresses images, when to use which, and how to convert between them safely.
4 min readRead
PDF Guides
How to Convert PDF to Word and Keep the Formatting
Why PDF to Word conversion sometimes scrambles layouts, which PDFs convert well, and a checklist for an editable Word file that matches the original.
4 min readRead
PDF Guides
How to Merge and Split PDF Files — A Complete Guide
Combine PDFs into one, extract the pages you need, remove blank pages and fix sideways scans — a practical guide to organising PDF documents for free.
4 min readRead
Image Guides
How to Compress Images for a Faster Website (Without Visible Quality Loss)
Images are usually the heaviest part of a web page. The resize, format and quality settings that cut image weight by 70–90% and improve Core Web Vitals.
5 min readRead
Image Guides
Image Sizes for Social Media — A Practical Cheat Sheet
Recommended image sizes and aspect ratios for Instagram, Facebook, X, LinkedIn and YouTube, plus a crop-then-resize workflow that keeps photos sharp.
5 min readRead
Privacy & Security
Are Online File Converters Safe? How to Protect Your Documents
What happens to your files in an online converter, in-browser vs server processing, and a checklist for picking tools you can trust with private documents.
5 min readRead
Privacy & Security
How to Password Protect a PDF (and What PDF Encryption Really Does)
How to add a password to a PDF, open vs permissions passwords, which encryption strength to choose, and how to share protected files safely.
5 min readRead
PDF Guides
How to Turn Photos of Documents into a Clean PDF
Turn phone photos of receipts, forms and notes into a tidy, readable PDF — with tips on lighting, cropping, page size and keeping the file small.
4 min readRead