Practical ToolHyv guides
Short, task-focused guidance for using browser tools correctly, choosing the right operation and avoiding common mistakes.
How to merge PDF files without losing page orderLearn how to combine PDF files in the right order, what can change during merging, and when browser-based PDF merging is a good fit.Image compression vs resizing: which should you use?Understand the difference between compressing and resizing images, when each saves more space, and how JPG, PNG and WebP affect quality.XPath vs CSS selectors in Selenium: practical rulesA practical guide to choosing CSS or XPath locators in Selenium, avoiding brittle selectors, and using stable attributes and relative relationships.QR code safety and quality: create and scan better codesLearn how to create QR codes that scan reliably, what content to encode, and how to check a QR destination safely before opening it.
Why these guides exist
A working utility is only half the job. The wrong PDF operation, image setting or locator strategy can still produce a bad result. These guides explain the decisions around the tools so you can choose the smallest operation that solves the problem and verify the output afterward.