ABOUT THIS COLLECTION
Berlvis Tools Guides
Practical guides for browser-based PDF, image, document, and calculator workflows. Every guide links to the tools it references so you can act on the walkthrough immediately.
How to use these guides
Open a guide, follow the steps in your browser, then jump directly to the linked tool. Guides cover both file workflows (PDF, image) and calculator workflows (PAYE, VAT, savings).
Continue exploring
How to Merge PDF Files Without Uploading Them A practical guide to merging PDF files in-browser while keeping private documents on your device. How to Compress a PDF Before Sending It Learn when to compress a PDF, which quality setting to choose, and how to review the result. How to Convert Images to PDF on Your Phone A mobile-friendly workflow for turning JPG or PNG images into a clean PDF document. How to Reduce Image File Size Without Losing Too Much Quality A practical image compression workflow for smaller files that still look clean. How to Calculate PAYE in Nigeria A plain-English guide to estimating PAYE in Nigeria with a browser-based calculator. How to Prepare Documents for Online Applications A checklist for cleaning, combining, compressing, and reviewing documents before uploading them.
Frequently asked questions
Are these guides free?
Yes. Every guide and every linked tool is free to use with no signup.
Do the guides work on mobile?
Yes. Guides are responsive and every linked tool is designed to work in mobile browsers.