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Delivery guide

How to compress an image for email or web.

Email and web images rarely need the same export settings as a source original. This guide explains how to compress for those destinations with cleaner tradeoffs around dimensions, file size, and format.

Tools

Open compress image

The related compression route keeps quality, dimensions, and output format together so the guide maps cleanly onto the tool.

Open compress image

Trust and privacy

What happens to the file

  • Files stay on your device. Images are not sent through a server upload queue.
  • The original file is left untouched while you preview and export the result.
  • Unsupported codecs are clearly disabled instead of failing silently.

Quick flow

How to run the route with confidence

  1. Define whether the destination is email, a website, or both.
  2. Choose the right combination of dimensions, format, and compression for that destination.
  3. Export locally, review the result, and keep a separate source file untouched.

Benefits

Why this route is useful

A practical compression guide built around common delivery destinations like email and websites.

Destination-first advice

The guide treats email and web delivery as real jobs instead of abstract compression theory.

Useful for repeated publishing work

It helps you settle a reliable export approach for common outbound image tasks.

Works directly with the browser tool

You can apply the guide immediately in the related local compression route.

Tradeoffs

What to consider before export

Email wants predictability

Broad compatibility often matters more than chasing the smallest theoretical codec.

Web wants lighter delivery

Modern formats and sensible dimensions often help far more than blind quality loss.

Not every asset should be compressed the same way

A screenshot and a photograph need different expectations.

Guide

What matters most

Start with the destination

A website asset and an email attachment may need different compromises even if they start from the same file.

Use dimensions as well as compression

Huge originals rarely need to stay huge just because the export slider exists.

Choose the final codec deliberately

The best compressed file still depends on where it will be opened, delivered, or embedded.

Best practices

Keep the output reliable

  • Lower dimensions before using extremely low quality on large originals.
  • Use JPG for compatibility-heavy email workflows and WebP or AVIF for modern web delivery when suitable.
  • Review the preview at a realistic viewing size before final export.

Keep going in Picmu

Compress imageApply the guide in the main local compressor.Reduce image sizeStart from a smaller-file workflow.JPG to WebPMove a photo into a lighter modern web format.

Guides worth reading next

Reduce file size without ruining qualityKeep the file smaller without overdoing it.Best image format for websitesChoose the right web destination format.PNG vs JPG vs WebP vs AVIFUnderstand format tradeoffs before export.

FAQ

Questions before export

Often that is the safest compatibility choice, but it still depends on the recipient and workflow.

Open in Picmu

Open compress image

The related compression route keeps quality, dimensions, and output format together so the guide maps cleanly onto the tool.

Open compress image