Learn

Short, honest guides. Every article links to the free browser tool that does the job.

• Every common file format, explained
  PDF, DOCX, HEIC, WebP, AVIF, EPUB, and 30+ more — what they're for and when to convert.
• How to compress a PDF (without losing quality)
  Ghostscript, image re-encoding, and font subsetting — what actually shrinks a PDF.
• How to resize an image the right way
  Pixels vs percent, resampling, and when to use WebP or AVIF.
• OCR that actually works: a practical guide
  Tesseract vs cloud OCR, preprocessing tricks, and cleaning up scan artefacts.
• How to convert HEIC to JPG
  Why iPhone photos won't open on Windows, and the fastest private way to convert them.
• WebP vs AVIF — which should you use?
  File size, browser support, encode speed — and when each format wins.
• Reduce a PDF for email attachments
  Gmail 25 MB, Outlook 20 MB — how to reliably fit any PDF under the limit.
• PDF to Word — what actually works
  Text-layer PDFs convert cleanly. Scans need OCR first. Here's the workflow.
• Convert Word to PDF (fonts preserved)
  Why 'print to PDF' breaks layouts, and the reliable server-side alternative.
• Remove image background — free & private
  How rembg / U²-Net models work, where they shine, and where they fail.