Guides
Short explainers answering the questions that actually come up when working with files: why did it get bigger, which format should I pick, what gets lost in conversion. The figures in them come from tests we ran ourselves.
How to Compress a PDF Without Losing Quality
Every compression tool promises “no quality loss”, and it isn't always true. This guide explains what can genuinely be compressed losslessly, when a loss is invisible, and how to pick the right method for your kind of file.
How to Reduce a PDF's File Size to Fit an Upload Limit
When a portal rejects your file for its size, the fastest fix isn't always “a compressor”. This guide helps you find out why the file is big in about a minute, then gives you the fix for each cause.
How to Convert Word to PDF Without the Layout Changing
Turning Word into PDF sounds trivial, but fonts, tables and Arabic text are where a good conversion and a bad one part ways. Here are the options, when to use each, and what to check before you send.
How to Merge Multiple PDFs Into One File
Merging PDFs is usually easy, but some files carry things that don't survive the merge. This guide covers the options, how to avoid ordering mistakes, and what to do before merging rather than after.
JPG vs PNG vs WebP: Which Format Should You Use?
There's no single “best” format — each one wins on a particular kind of image. We ran all three on a photograph and a screenshot; here are the results and what they mean in practice.
What Is WebP, and Why Do Images Save in It?
Saved an image from a website, found it ends in .webp, and the program you wanted to use won't take it? This guide explains what the format is, why sites use it, and when you need to convert it.
How to Convert JPG to PNG — and When It's Worth It
Converting JPG to PNG is easy, but most people looking for it expect things it doesn't do. This guide covers when converting genuinely helps, and when it just wastes space.
How to Resize Images for Email
Phone photos today are far bigger than any email needs. Shrinking them before sending gets the message there faster and avoids rejected attachments — without the recipient noticing any difference.