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2026-07-08¡5 min read

How to Reduce File Size for Email Attachments

Multiple strategies to shrink files and meet email attachment size limits.

Reducing File Size for Email

Email attachment limits are a constant frustration. Here's how to work around them.

Strategy 1: Compress with ZIP

Our free ZIP Compressor can bundle multiple files and reduce their total size. This is the simplest approach.

Strategy 2: Split Large Files

If a single file is too large, split it:

    • Use our PDF Splitter for PDF files

    • Use our ZIP tool to create multiple smaller archives

Strategy 3: Optimize Before Compressing

    • Images: Compress with our Image Compressor first
    • PDFs: Remove unnecessary pages
    • Videos: Use video compression tools
    • Documents: Remove embedded images

Strategy 4: Use Cloud Links

For very large files:

  • Upload to Google Drive, Dropbox, or OneDrive

  • Share a link instead of attaching

  • Set appropriate sharing permissions

Email Size Limits Reference

ProviderLimitStrategy
Gmail25 MBZIP for most files
Outlook20 MBSplit + ZIP
Yahoo25 MBZIP for most files
Corporate10 MBOptimize + ZIP