Compress PDF for Email: Compress PDF for Email reduces oversized documents to ensure they stay well under Gmail's 25 MB limit and Outlook's 20 MB attachment ceiling. FreeAIPDF runs 100% locally in your web browser using WebAssembly. Your files never leave your device, guaranteeing absolute confidentiality, zero subscriptions, and no file size paywalls.
Compress PDF for Email reduces oversized documents to ensure they stay well under Gmail's 25 MB limit and Outlook's 20 MB attachment ceiling.
All compression happens directly on your machine without storing files on any server.
How to use Compress PDF for Email
- 1Select the PDF you wish to email.
- 2Choose Balanced compression for the perfect compromise between quality and compact size.
- 3Click Compress.
- 4Download and attach to your email.
Compress PDF for Email Specifications & Privacy Overview
Core technical parameters and security disclosures for Compress PDF for Email.
- Processing Architecture
- 100% client-side, runs in your browser
- Data Transmission
- 0 bytes uploaded; the file never leaves your device
- Usage & Cost
- 100% Free; unlimited daily document processing
- Account Requirement
- Zero sign-up, no email, no payment details
- File Capacity
- Up to 100 MB per file
- Platform Compatibility
- Windows, macOS, Linux, iOS (iPhone/iPad), Android
Why FreeAIPDF vs Cloud PDF Converters
| Security & Capability | FreeAIPDF (Client-Side) | Other Online Converters |
|---|---|---|
| Document Privacy | ✓ 100% Local (0 bytes uploaded) | ✗ Uploaded to external servers |
| Pricing & Limits | ✓ Completely Free & Unlimited | ✗ Daily caps & paid tiers |
| User Accounts | ✓ No signup or email required | ✗ Forces registration |
| Execution Speed | ✓ Instant client-side engine | ✗ Network upload & queue delay |
Technical Architecture & Verifiable Security
Verifiable client-side sandbox execution parameters for enterprise, compliance, and privacy verification:
Frequently asked questions
- What is the maximum attachment size for Gmail and Outlook?
- Gmail limits attachments to 25 MB, while Outlook limits them to 20 MB. This tool easily brings multi-MB files down to small, email-safe sizes.