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Image Optimization: Compress, Resize and Convert the Right Way

July 2, 2026 1 min read

Images are usually the heaviest thing on a web page and the biggest attachments in an email. A little optimisation goes a long way — for speed, for storage and for staying under upload limits.

Compress without the mush

Image Compressor reduces file size by re-encoding an image at a smart quality level. For photos, you can often cut 60–80% of the size with no visible difference. It all happens locally, so even sensitive images stay on your device.

Resize for the job

A 6000-pixel photo is overkill for a website thumbnail. Image Resizer scales images to the exact dimensions you need, which shrinks the file dramatically as a bonus. Need a specific crop? Image Cropper gives you precise control.

Convert to the right format

Format matters:

  • JPG — great for photographs.
  • PNG — best for graphics with transparency.
  • WebP — modern format with excellent compression for the web.

Image Converter switches between them in a click, including modern formats like WebP.

Turn images into a PDF (or vice versa)

Bundling receipts or photos to send? JPG to PDF and Image to PDF combine images into a single document. Going the other way, PDF to JPG exports each page as an image.

Rule of thumb: resize first, then compress, then convert. Do all three and your images will be a fraction of the size with quality nobody will notice was reduced.

Tools used in this guide

compress imageresize imageconvert imagewebpoptimize images