# PDF too large for Outlook

> PDF too large for Outlook or Microsoft 365? Compress in your browser without uploading — mypdf.space.

Canonical: https://mypdf.space/guides/pdf-too-large-for-outlook
Last updated: 2026-10-22

## Direct answer

Use Compress PDF for Outlook on mypdf.space, download the smaller file, then attach in Outlook. Org limits vary — match IT guidance when you have it.

## Introduction

Outlook and Microsoft 365 often enforce tighter attachment limits than consumer Gmail. Fix size locally before you involve an upload-based compressor.

## Steps

1. Open Compress PDF for Outlook.
2. Pick Keep text or Target size (1–2 MB when a portal is strict).
3. Download and attach in Outlook.
4. For confidential files, run Confidential Send after size is OK.

## Work accounts

Your admin may set a lower cap than the consumer default. When the error states a number, use Target size.

## Limits

- Encryption adds a password step the recipient must know.
- Very large scans may need page extraction first.

## FAQ

### Typical Outlook attachment limit?

Often in the 10–20 MB range, but orgs differ. Believe the error message.

### Does mypdf upload to Microsoft?

No.

### Gmail link?

See PDF too large for Gmail.

## Related

- [Compress PDF](https://mypdf.space/tools/compress)
- [Split PDF](https://mypdf.space/tools/split)
- [Confidential Send](https://mypdf.space/tools/workflow)
- [Encrypt PDF](https://mypdf.space/tools/encrypt-pdf)
- [All guides](https://mypdf.space/guides)