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Jay PadimalaJanuary 20266 min read
PDF Tools6 min read

How to Compress PDF for Email (Under 10MB)

Reduce PDF file size to send via email. Compress PDFs to under 10MB or 25MB for Gmail, Outlook.

1,800 words

Access and pricing

Supported tools include 5 free on-device uses per day, shared across eligible tools. On compatible devices, guest access needs no sign-in. Signed-in users also get 5 daily eligible on-device uses. AI and cloud processing use credits separately.

New accounts can claim 20 welcome credits once. Eligible offers in MiOffice can earn up to 80 reward credits; offer conditions apply.

Starter costs $6.99/month and includes 250 credits at each paid renewal plus unlimited eligible local processing. Unused credits roll over. The $2.99 Day Pass covers 24 hours of eligible local processing; AI and cloud credits are separate.

Compare tools using a representative file and inspect the export. Check supported formats, device compatibility, processing location and the displayed cost before starting. This article is published by MiOffice; consider its recommendations with that affiliation in mind.

Pricing

Access and pricing updated October 30, 2026. This editorial update does not indicate a new test run.

Email Attachment Limits

Email ProviderMax SizeRecommended
Gmail25 MBUnder 10 MB
Outlook20 MBUnder 10 MB
Yahoo Mail25 MBUnder 10 MB
Corporate Email5-10 MBUnder 5 MB

Note: Many corporate email servers have stricter limits (5-10MB). When in doubt, compress to under 5MB.

How to Compress PDF for Email

  1. 1

    Open PDF Compressor

    Go to our free PDF compressor.

  2. 2

    Upload Your PDF

    Drag and drop or click to select your PDF file.

  3. 3

    Choose Compression Level

    Select "Medium" for best balance of size and quality. Use "High" for maximum compression.

  4. 4

    Download & Email

    Get your compressed PDF and attach it to your email.

Why Are PDFs So Large?

Common reasons your PDF is too big:

  • •High-resolution images — Photos embedded at full quality.
  • •Scanned documents — Scans are images, not text, making files huge.
  • •Embedded fonts — Every font used adds to file size.
  • •Multiple pages — More pages = larger file.

Compression Quality Comparison

Low Compression

~20% smaller

Best quality, larger file

Medium (Recommended)

~50% smaller

Good quality, good size

High Compression

~80% smaller

Lower quality, smallest file

Still Too Large? Try These

Split PDF

Send in multiple emails

Use Cloud Link

Share via Google Drive/Dropbox

Compress Your File Now

MiOffice AI is an AI-powered digital workspace studio. Create, edit, convert, compress, collaborate, and share — video, audio, images, documents, scanning, notes, screen sharing, and file transfer. the full MiOffice catalog, all in one place.

15MB → 1.5MB
90% reduction in ~3s
Compress NowLocal and cloud processing have different privacy terms

Frequently Asked Questions

Will compression affect text quality?
No. Text remains sharp. Only images within the PDF are compressed.
Is my PDF secure?
Yes! Processing happens in your browser. Your PDF is processed in your browser.
Can I compress password-protected PDFs?
You'll need to unlock the PDF first, then compress.

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Jay Padimala

CEO & Founder

Jay Padimala is CEO and Founder of MiOffice, a product of JSVV SOLS LLC.

View all posts by Jay Padimala
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