ToolHamper Guides

Every ToolHamper tool is designed to be obvious: add a file, press a button, download the result. These guides go one step further. Each one explains how to get a good result — not just a finished one — including the choices that matter, the mistakes that waste time, and how to check your output before you rely on it. Like the tools themselves, everything here works in your browser: your files are processed locally on your device and are never uploaded to a server.

How to Compress a PDF

Make a PDF small enough to email or upload without wrecking its quality. Covers what actually makes PDFs large, how to pick between the three quality levels, and how to check the result before you send it.

How to Merge PDF Files

Combine several PDFs into one clean document. Covers preparing your files, arranging them in the right order before you merge, and the finishing touches — like adding page numbers — that make a merged file easy to read.

How to Create a QR Code

Turn a link or a piece of text into a QR code you can print or share. Covers choosing the right content, size and color settings, the difference between PNG and SVG downloads, and the test scan you should always do first.

How to Create a Strong Password

What makes a password strong — length, randomness, and using a different one for every account — and how to generate one securely in your browser. Plus practical ways to remember and store passwords without writing them on sticky notes.

New to ToolHamper?

Start with How to Use for the 30-second version of how every tool works, or browse all 26 tools on the homepage.