Guides & Tutorials
Practical, no-nonsense guides to getting more out of your files — which formats to use, how to hit a size limit, and how to protect your privacy. Every tool we mention runs 100% in your browser.
Favicon Sizes and Formats in 2026: What Your Site Actually Needs
Skip the 20-icon checklists. Here is the small favicon package that actually matters in 2026 - favicon.ico, PNGs, apple-touch-icon, manifest icons - and how to generate all of it from one logo in your browser.
7 min read
PDF Passwords Explained: The Two Kinds, and How to Remove or Add One
PDFs can carry two passwords: one that locks the file shut and one that only restricts printing or copying. Learn how each works, when removing them is legitimate, and how to protect a PDF properly in your browser.
7 min read
GIF vs Video in 2026: When a GIF Is the Right Call (and When It Is 10x Too Big)
GIFs are huge, 256-colour, and silent - yet they autoplay everywhere with zero clicks. Learn when a GIF beats a video, when it is 10x too big, and how to convert both directions in your browser.
7 min read
The 300 DPI Myth: What Image Resolution Actually Means for Printing and Uploads
Told your photo needs to be 300 DPI? DPI is just a metadata note; pixels are what matter. Learn the pixels-divided-by-DPI math, when the DPI flag genuinely counts, and how to fix it in your browser.
7 min read
Turn Phone Photos Into a Clean PDF Scan, No Scanner and No App Required
No scanner? Your phone camera and a browser are enough. Learn how to photograph documents well, combine the photos into one PDF, and optionally extract the text, all without installing a scanner app.
7 min read
Email Attachment Size Limits in 2026 - and the Base64 Trap That Bounces Files That Looked Small Enough
Gmail says 25MB, so why did your 24MB file bounce? Real attachment limits for Gmail, Outlook and corporate mail, the 33% Base64 inflation trap, and how to compress any PDF, image or video to a size that actually sends.
7 min read
HEIC to JPG: Why iPhone Photos Won't Open on Windows (and How to Fix It)
Your iPhone shoots HEIC, and Windows or older software can't open it. Here's what HEIC is, why it breaks, and how to convert it to JPG in seconds.
5 min read
How to Take a Passport or Visa Photo at Home (Free, With Your Phone)
Take a passport or visa photo at home: background and lighting setup, exact sizes in mm and pixels, common rejection reasons, and a free in-browser crop tool.
7 min read
How to Extract Text from an Image or Scanned PDF with OCR, Right in Your Browser
How to pull text out of images and scanned PDFs with in-browser OCR: when it works, what breaks it, 17 supported languages, and what actually gets downloaded.
7 min read
How to Sign a PDF Without Printing or Scanning It
Skip the print-sign-scan loop: draw or type a signature in your browser, place it on the page, and learn when an e-signature is legally enough.
7 min read
Social Media Image Sizes in 2026: A Cheat Sheet for Instagram, X, Facebook, LinkedIn, and YouTube
The 2026 recommended image sizes for Instagram, X, Facebook, LinkedIn, and YouTube, plus how to crop and resize to exact pixels in your browser.
7 min read
How to Remove an Image Background for Free Without Uploading It
Remove a photo background for free without uploading it: how in-browser AI matting works, why it is best on people, and how to fix rough edges by hand.
7 min read
How to Compress a Video for WhatsApp, Discord, and Email
Real WhatsApp, Discord, and email size limits, why videos are so big, and how to shrink one in your browser by lowering bitrate — with honest quality tradeoffs.
6 min read
What Is EXIF Data? What Your Photos Reveal (and How to Remove It)
EXIF data hides in your photos: camera model, timestamp, and often GPS coordinates. Learn what it reveals, how to check for GPS, and how to strip it safely.
6 min read
How to Compress a PDF for Email Without Wrecking the Quality
Your PDF is too big to email? Learn why PDFs balloon, what the real size limits are, and how to shrink one to 1-2MB in your browser without losing much quality.
6 min read
PNG vs JPG vs WebP: Which Image Format Should You Use?
PNG, JPG, and WebP compared: which to pick for photos, logos, and the web, why PNG-to-JPG kills transparency, and why re-saving a JPG degrades it.
6 min read