Guides
Tools work best when you know what is happening to your files. These guides explain the why behind each task — what makes a PDF large, which image format to pick, what a PDF password really protects — with step-by-step instructions you can follow with any software, including ours.
8 min read · updated
Why some PDFs are huge, which compression methods work for which kind of document, and how to get under email and upload limits without ruining quality.
Related tools: Compress PDF, Split PDF, Merge PDF
9 min read · updated
How JPEG, PNG, WebP, AVIF and GIF compress, when transparency matters, browser support, and which to pick for photos, screenshots and logos.
Related tools: Image Convert, WebP Converter, Image Compress
7 min read · updated
Open vs permission passwords, why AES-256 matters, how to choose and share a password safely, and what a PDF password cannot do.
Related tools: Protect PDF, Merge PDF, Delete PDF Pages
6 min read · updated
Lighting, framing and settings that make phone photos of documents look like real scans, and how to combine them into one small PDF.
Related tools: PDF Scanner, JPG to PDF, Image to PDF
8 min read · updated
A step-by-step workflow for resizing, compressing and converting website images, plus the HTML attributes that improve Core Web Vitals.
Related tools: Image Resize, Image Compress, WebP Converter
6 min read · updated
Which favicon files browsers, phones and Google Search use, the sizes that matter, the HTML to add, and how to design a legible 16 px icon.
Related tools: Favicon Generator, Image Crop, Image Resize
7 min read · updated
When to merge, split, extract, delete, reorder or rotate PDF pages for application packs, reports and scans — without losing text quality.
Related tools: Merge PDF, Split PDF, Extract PDF Pages