Practical guides written by Emmanuel Nyoni for South African freelancers, small business owners, and developers. All guides are free, jargon-light, and focused on real South African use cases.
Why PDFs get large, what compression actually does, and how to reduce size by up to 90% — free, no upload, no software.
Combine multiple PDFs into one document — for CVs, tender documents, home loan applications, and more. Browser-based, private.
Mark documents as CONFIDENTIAL, DRAFT, SAMPLE or COPY. When to use each, choosing opacity, and how to watermark without uploading your file.
What every SA invoice must include, VAT rules, EFT banking details, payment terms, and SARS record-keeping — plus a free PDF invoice generator.
WiFi sharing, digital menus, contact sharing, and payments. How to create, print, and use QR codes effectively for your business.
What SA employers look for, how to beat ATS screening software, achievement-focused bullet points, and a free CV builder.
Standard dimensions for all platforms, pixels vs percentage scaling, and what happens to quality when you resize up or down.
The complete guide to choosing the right image format for websites, social media, documents, and print. Quick decision table included.
How passwords get stolen, what entropy means, free password managers, and South Africa-specific threats like SIM swapping.
What JSON is, how it works, the 6 most common errors, and how to format and validate JSON online for free.
Complete metric-to-imperial reference — km to miles, kg to pounds, Celsius to Fahrenheit, kPa to PSI, litres to gallons, and more.
All 20+ tools are completely free — no signup, no upload limits, files stay on your device.
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