# Compress PDF for email attachment

> Compress a PDF for email attachments. Hit Gmail, Outlook, and portal size limits in your browser — no upload, no watermark, no account.

Canonical: https://mypdf.space/compress-pdf-for-email
Last updated: 23 Oct 2026

## Answer

Email clients and many portals cap attachments (often ~10–25 MB, sometimes far less). Drop your PDF below, use Keep text for everyday mail, or Target size when a form asks for 100 KB–2 MB. Compression runs in your browser — the file is never uploaded.

## Privacy

Compression is local. mypdf.space never receives your attachment. Your email provider handles the send after you download.

## Who needs this

- Anyone whose PDF is “too large to email”
- People sending to Gmail, Outlook, or corporate gateways with attachment caps
- Applicants attaching forms under portal size rules

## Limits

- Target size stops at a readable floor instead of producing unreadable pages.
- Very image-heavy decks may need Max shrink or a dedicated size page.
- Password-protected files must be unlocked first.

## How to

1. Drop the PDF into the compressor below.
2. Use Keep text for everyday email; use Target size when a recipient or form states a KB/MB cap.
3. Preview the first pages so charts and small print stay readable.
4. Download and attach the result in your email client.
5. Optional: Remove metadata or run the privacy checker before sending sensitive mail.

## FAQ

### What size should a PDF be for email?

Under 10 MB is safe for most Gmail and Outlook sends. Many government and university portals ask for 1–2 MB or less — use Target size or a size page like 1 MB / 500 KB.

### How is this different from Compress PDF online?

Same compressor, different intent. This page focuses on attachment limits and email workflows; Compress PDF online covers general compression and Keep text vs Max shrink.

### Can I compress for WhatsApp or portals too?

Yes. Use Target size here, or open Compress to 100 KB / 200 KB for stricter caps. Files stay on your device either way.

## Related

- [Compress PDF for email attachment](https://mypdf.space/tools/compress)
- [Compress PDF](https://mypdf.space/compress-pdf-online)
- [Split PDF](https://mypdf.space/split-pdf)
- [Remove metadata](https://mypdf.space/remove-pdf-metadata)
- [Compress to 100 KB](https://mypdf.space/compress-pdf/100kb)
- [PDF too large to email](https://mypdf.space/guides/pdf-too-large-to-email)