Guides & Tutorials
Practical, tested guides for the everyday image and PDF jobs: compressing to exact sizes, choosing between formats, merging and converting documents, and getting professional-looking results from free browser tools. Every guide pairs with a tool that runs entirely in your browser — no uploads, no signup, no watermarks. The numbers we quote come from our own measured benchmarks, not from vendor marketing.
How to Compress Images Without Losing Quality
Every image on your website, in your emails and in your uploads is bigger than it needs to be. Cameras store far more detail than screens can show, design tools export with…
Companion tool: Image Compressor · Read the guide →
How to Compress an Image to an Exact File Size
Government forms, job application portals, university admissions and visa systems love hard limits: “maximum 100 KB”, “under 200 KB”, “between 50 KB and 300 KB”. Ordinary…
Companion tool: Target File Size · Read the guide →
How to Compress PDF Files — and Why They Get So Big
A scanned contract that weighs 45 MB. An ebook that won't attach to a 25 MB email. A ten-page application PDF that exceeds the portal's 2 MB cap. Oversized PDFs are a universal…
Companion tool: Compress PDF · Read the guide →
How to Merge PDF Files Online (Free & Private)
Merging PDFs is the most requested PDF task there is: five invoices into one for accounting, scanned pages into a single application document, a report plus its appendices. It…
Companion tool: Merge PDF · Read the guide →
How to Convert PDF to Word Without Losing Formatting
Someone sends you a PDF and asks for “just a few small changes”. Or you wrote something years ago, only the PDF survives, and the original Word file is long gone. Converting PDF…
Companion tool: PDF to Word · Read the guide →
WebP Explained: The Complete Guide to Google's Image Format
WebP has quietly become the default image format of the modern web: every major browser supports it, WordPress generates it automatically, and the biggest sites on earth serve it.…
Companion tool: WebP Converter · Read the guide →
HEIC to JPG: The Complete Guide for iPhone Users
You plug your iPhone into a friend's laptop, or attach a photo to a government form, and suddenly the picture is a .HEIC file nobody can open. Apple adopted HEIC in 2017 to halve…
Companion tool: HEIC to JPG · Read the guide →
PNG vs JPG: Which Image Format Should You Use?
PNG and JPG are the two formats everyone has, and people pick between them wrong every day — exporting screenshots as JPG into mush, or shipping photographs as 8 MB PNGs. The…
Companion tool: PNG to JPG · Read the guide →
How to Resize Images Correctly (Without Ruining Them)
Resizing is the most-used image operation in the world — and the most-done-wrong. Stretched logos, blurry portraits, profile photos cropped into headless by a form, and “why is my…
Companion tool: Image Resizer · Read the guide →
How to Remove an Image Background — Free and Private
Transparent-background images used to be a Photoshop specialist's job: pen tool, layer masks, an hour per photo. Automatic background removal changed the economics — a…
Companion tool: Remove Background · Read the guide →