Guides for PDF, photo and slide jobs
Plain, step-by-step answers to common questions, each paired with a free Toolbyte tool that runs in your browser.
- How to compress a photo to 50KB for online formsHow to get a photo or signature under 50 KB for exam, job and government forms: sizes, JPG format, and the exact steps in your browser.Updated 14 Nov 2026 · 4 min read
- How to convert JPG to PDFConvert one or several JPG or PNG images into a single PDF: set the order, page size and margins, with steps for phone and computer.Updated 14 Nov 2026 · 4 min read
- How to make a presentation fast with AIMake a slide deck in minutes with AI: write a clear topic, generate an outline, edit it, and download a PPTX. Includes structure and editing tips.Updated 14 Nov 2026 · 4 min read
- How to make a passport size photo onlineMake a passport size photo from any portrait: 35x45 mm, 2x2 inch or 51x51 mm at 300 dpi, plus background and framing tips. Check official rules.Updated 14 Nov 2026 · 4 min read
- How to merge PDF files on your phoneStep-by-step ways to combine PDFs into one file on Android and iPhone using only your browser, with tips on order, size and privacy.Updated 14 Nov 2026 · 4 min read
- How to reduce PDF file size: what actually worksHonest tips to make a PDF smaller: remove pages, shrink images before export, and when you need desktop software. Plus what our tools can do.Updated 14 Nov 2026 · 4 min read
- How to split a PDF into pagesSplit a PDF into single pages or extract page ranges like 1-3,5,8-10 in your browser. Steps for phone and computer, plus tips for scans and forms.Updated 14 Nov 2026 · 4 min read
- WebP vs JPG vs PNG: which image format should you use?When to use JPG, PNG or WebP for photos, logos, screenshots and web pages, with the trade-offs in size and compatibility and how to convert.Updated 14 Nov 2026 · 4 min read