Blog
Practical guides to getting more out of your files — how to merge, convert, compress, sign and protect documents, and the free tools that do each job in your browser.
Why Browser-Based Tools Are Safer for Your Files
Most online converters upload your files to a server. Client-side tools don't. Here's why that difference matters for privacy.
Working with JSON, XML and YAML: Format, Validate and Convert
Messy config or API response? Learn to pretty-print, validate and convert between JSON, XML, YAML and CSV in seconds.
Image Optimization: Compress, Resize and Convert the Right Way
Faster pages and smaller files start with good images. Learn how to compress, resize and convert images without wrecking quality.
OCR Explained: Turn Scanned PDFs and Images into Editable Text
What OCR is, when to use it, and how to extract text from scans, photos and image-only PDFs — privately, in your browser.
How to Password-Protect (and Unlock) a PDF
Encrypt a PDF with a password, set permissions, or remove a password you know — securely and privately in your browser.
How to Sign a PDF Electronically for Free
Add your signature to a PDF by drawing, typing or uploading it — no printer, no scanner. A quick guide to e-signing safely.
Convert PDF to Word, Excel and PowerPoint — and Back
Turn PDFs into editable Office documents and convert Office files to PDF, all in your browser. What works well, and what to expect.
How to Compress a PDF Without Losing Quality
Shrink large PDFs for email and uploads while keeping them readable. Learn when to use lossless optimisation vs. image compression.
How to Merge and Split PDF Files Online (Free, No Upload)
Combine multiple PDFs into one or break a big PDF into pages — free, in your browser, with nothing uploaded. A step-by-step guide.