Convert26 Blog
In-depth, practical guides on file formats, compression, OCR and document workflows — written for people who just need the file to work.
WebP and AVIF: The Next Generation of Image Formats
How WebP and AVIF compare to JPEG and PNG, what each format is good at, and when to choose one over the other for web images.
All articles (32)
- Core Web Vitals8 min read
Measuring Core Web Vitals with Field and Lab Data
The difference between field data and lab data, which tools measure each, and why the two sometimes disagree on whether a page is fast.
Read more - File Optimization8 min read
Video Bitrate Explained: Balancing Quality and File Size
What bitrate actually controls, how it relates to resolution and framerate, and how to choose settings that shrink a video without ruining it.
Read more - File Optimization8 min read
PDF Optimization for the Web: Reducing Load Times
Why PDFs are often far larger than they need to be, what inside a PDF bloats the file, and a step-by-step process for producing web-ready documents.
Read more - Core Web Vitals7 min read
Lazy Loading and Modern Image Formats for Faster Pages
A practical guide to lazy loading, the srcset and sizes attributes, and serving WebP and AVIF with graceful fallbacks for older browsers.
Read more - Core Web Vitals8 min read
How Image Optimization Improves Core Web Vitals
Images are the heaviest assets on most pages and the most common cause of poor LCP and CLS. Here is how to optimise them for both speed and stability.
Read more - Core Web Vitals9 min read
Core Web Vitals Explained: LCP, INP, and CLS
A developer’s guide to the three Core Web Vitals metrics — what they measure, how they are scored, and what actually moves the needle on each one.
Read more - PDF Security8 min read
Redacting Sensitive Information from PDFs: A Practical Guide
Why visual black boxes are not redaction, how true redaction works at the PDF object level, and a step-by-step workflow for safely removing sensitive content.
Read more - PDF Security7 min read
How to Securely Share PDF Documents Online
Practical steps for sharing sensitive PDFs without exposing them to third-party servers, including encryption, redaction, and browser-based workflows.
Read more - PDF Security8 min read
Understanding PDF Encryption and Password Protection
A technical explanation of how PDF encryption works, the difference between user and owner passwords, and what browser-based unlocking actually does.
Read more - PDF7 min read
How to Convert PDF to Word Without Losing Formatting
Step by step guide to convert PDF to Word while preserving layout and fonts.
Read more - Image6 min read
Best Practices for Compressing Images for Web Use
How to compress images for faster pages without visible quality loss.
Read more - PDF6 min read
How to Merge and Split PDFs Securely
Secure methods to merge and split PDFs and protect sensitive content.
Read more - Privacy8 min read
Privacy-First Alternatives to Online File Converters
A guide to privacy-first alternatives to server-based online converters, why local browser processing protects your data, and which tools to use for common tasks.
Read more - Guides9 min read
How to Convert Between File Formats: A Beginner's Guide
A beginner-friendly guide to file formats and conversion: what extensions mean, which conversions work well, which lose information, and how to convert safely.
Read more - Privacy9 min read
Why Browser-Based Tools Are Safer Than Uploading to Servers
How server-based file converters expose your data, why browser-based processing is fundamentally more private, and what to look for in a privacy-first tool.
Read more - Guides9 min read
Audio File Formats Explained: MP3 vs WAV vs FLAC vs AAC
Compare MP3, WAV, FLAC and AAC on compression, quality, file size and compatibility, with clear guidance on which audio format to use for each purpose.
Read more - Image8 min read
Free Image Compression Tools: A Practical Comparison
How image compression works, the difference between lossy and lossless, and how to compress JPG, PNG and WebP images in your browser without uploading them.
Read more - OCR9 min read
Text Extraction from Images: How OCR Technology Works
A deeper look at OCR technology: binarisation, segmentation, neural recognition, language models, accuracy limits and practical applications for text extraction.
Read more - PDF8 min read
How to Convert PDF to Word Online (and When to Use a Browser-Based Tool)
A practical guide to converting PDF files back into editable Word documents, the methods that actually work, and why browser-based tools keep your content private.
Read more - Image9 min read
Image Optimization for Web: Reduce File Size Without Losing Quality
A complete image optimisation workflow for the web: correct dimensions, format selection, quality tuning, lazy loading and responsive delivery.
Read more - PDF10 min read
The Ultimate Guide to PDF Tools: Merge, Split, Compress & Convert
A complete practical guide to working with PDFs: merging, splitting, compressing, converting to and from images and Office formats, and doing it all privately.
Read more - Guides8 min read
How to Choose the Right File Converter for Your Needs
What separates a good file converter from a risky one: privacy, quality handling, format support, file limits and honest feature claims. A practical evaluation checklist.
Read more - SEO9 min read
Why File Size Matters for Website Speed and SEO
How heavy files slow down websites, damage Core Web Vitals and cost conversions, plus a practical plan for reducing page weight without redesigning anything.
Read more - Security9 min read
Best Practices for File Sharing and Security in 2026
Practical file-sharing security guidance: choosing channels, minimising data, handling metadata, using local processing tools, and avoiding common exposure mistakes.
Read more - Guides9 min read
How to Reduce Video File Size for Email and Web Sharing
Why video files are so large, how resolution, bitrate, frame rate and codec each affect size, and practical strategies for sharing video by email or web.
Read more - OCR8 min read
How to Convert Images to Text (OCR) – Step by Step Tutorial
A step-by-step tutorial for extracting text from images with OCR, including capture tips, language selection, proofreading and how to handle difficult scans.
Read more - Image9 min read
Best Image Formats for Web vs. Print – A Complete Comparison
Web and print need opposite things from an image. Compare formats, resolution, colour spaces and compression for each, with clear recommendations.
Read more - Guides10 min read
The Complete Guide to File Compression: Formats, Tools & Best Practices
How file compression works, the difference between lossless and lossy methods, which format suits each file type, and practical rules for compressing without regret.
Read more - OCR9 min read
What is OCR and How Does It Work? A Complete Guide
Understand what optical character recognition is, how OCR engines turn pixels into editable text, what limits accuracy, and how to get the best results.
Read more - Image9 min read
PNG vs JPG vs WebP: Which Image Format Should You Use?
A practical comparison of PNG, JPG and WebP covering compression, transparency, browser support and exactly which format to pick for each type of image.
Read more - PDF8 min read
How to Compress a PDF Without Losing Quality
Learn how PDF compression actually works, which settings preserve quality, and how to shrink a PDF in your browser without uploading it anywhere.
Read more
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